Answer :
I believed there's a typo in your question
The product of 3 and a number x is 2/3
if so
3x = 2/3
x = 2/3 * 1/3
x = 2/9
answer
x = 2/9
The product of 3 and a number x is 2/3
if so
3x = 2/3
x = 2/3 * 1/3
x = 2/9
answer
x = 2/9