Adult population 264.6 million, the number of people in the labor force is 174.1 million, and the people employed are 123 million
If you consider people that are "in the labor force" includes people employed or unemployed.
And, the whole adult population includes those in the labor force and those who are not in the labor force, then the number of people "not in the labor force" will be equal to the difference between the adult population and the number of people in the labor force:
[tex]264.6-174.1=90.5[/tex]There are 90.5millions of people "not in the labor force"