A couple from Missouri have claimed their share of a Powerball lottery jackpot worth $US587.5 million in the United States.
Mark and Cindy Hill, of Dearborn, will split the record prize with a winner from Arizona, who has not come forward.
Mr Hill, 52, a mechanic at a meat-processing plant, and his wife said they might now adopt a second child.
Mrs Hill, an office manager who was made redundant in June 2010, said in a statement: "It's really going to be nice to spend time - not have to work - and be able to take trips with our family."
The couple also said they would use their winnings to help their grandchildren, nieces and nephews, pay for college.
The BBC reports they have not said whether they plan to receive their payout in a single lump sum or in annual instalments.
Forty two states, the District of Columbia and the US Virgin Islands participate in the Powerball lottery.
The other winner in Arizona has 180 days to claim the remaining prize money.
The numbers drawn late on Wednesday were 5, 23, 16, 22, 29 and 6.