Here. There's a table if you scroll down a bit. It's estimated at an adjusted ~$2.825 billion here, based on 2014 numbers, for third overall.
Inflation numbers for movies prior to the 1980s are just guessworks.
1) Earlier films has were pretty much in constant unofficial reissue at various theatres for years or decades prior to the popularization of home television (and later VHS). Sometimes sites like BOM have access to yearly breakdowns, sometimes not.
2) Popular films like Gone with the Wind often played a nicer roadhouse theatres which charged several times (5-10x) what the average ticket price was at the time. Inflation calculations don't/can't take this into consideration (since there aren't records of where the gross came from, even if they have records of gross per year), so some of the earlier big films or overestimated by significant margins.
Mojo's Star Wars inflation number is pretty easily shown to be an overestimate.
Using their own publicly listed info, you can see that Star Wars' initial run is listed at $307M, which they adjust to $1.16B domestic in 2014 dollars. Mojo gives their average ticket prices for 2014 ($8.17) and 1977 ($2.23). Just doing a simple calculation, you can see that they basically just took that $307M and multiplied it by ~4x increase in average ticket prices.
However, their own weekend data shows that Star Wars was sitting at $215M after 10 months of release, and the other ~$95M came from re-expansions/unofficial re-releases in the summer of 1978, 1979, and presumably afterwards (prior to the official reissue in 1982).
Average ticket prices went up 25% between 1977 and 1981. Even between 1977 and 1979 there was a 13% increase. As such, that last 30% of the "initial run" is probably overestimated 10-20%. Not a ton, but enough to bump it below the initial run of Titanic and E.T.
