An online gambling site offers a first prize of $$45,000$ and two second prizes of $$20,000$ each for registered users when they place a bet. A random bet will be selected over a $24-$hour period. Three million bets are received in the contest. Find the expected winnings if you can place one registered bet of $$1$ in the given period.

The expected payback for a person who places one registered bet is $ $($Round to two decimal places as needed.$)$