When Mr. Howell bets Gilligan he can't sink a putt

[Pat]

In one episode, Mr. Howell bets Gilligan the only money Gilligan has: 25 cents.
Gilligan putt over and over until 10:30 at night, doubling his money until he is up to $3 million.

This is impossible unless they rounded off one or more of the bets.

If Gilligan sunk 23 putts and doubled his money each time, he would have $2,097,152.00. Thus, the next putt would have him at $4,194,304.00.

$3 million??? Nothing even close to call it three million.