Lottery officials say the ticket purchased at a Clark service station in New Berlin for the September 3 drawing had been presented by Dennis Poppe.
The ticket had been a "quick pick'' selection with the numbers generated by computer rather than picked by the purchaser.
The jackpot was the 50th since the Wisconsin Megabucks game began in 1992.
The Clark station earned a $68,000 commission for selling the winning ticket, representing two percent of the prize.
