Adult population = 247,947,000
Labor force size = 155,922,000
Labor force participation = 93.8%
Unemployment rate = 6.2%
The adult population is the sum of employed, unemployed, and not in the labor force. So
146,305,000 + 9,617,000 + 92,025,000 = 247,947,000
The size of the labor force is the sum of those who are employed and unemployed. So
146,305,000 + 9,617,000 = 155,922,000
The labor force participation rate is the percentage of the labor force that's employed. So
146,305,000 / 155,922,000 = 0.938321725 = 93.8%
The unemployment rate is the percentage of the labor force that's unemployed. So
9,617,000 / 155,922,000 = 0.061678275 = 6.2%