Finding the Third Proportional to 70,572 and 150,990

Step by Step Solution

1. Step 1: Write the proportion equation
   70,572 : 150,990 = 150,990 : x
2. Step 2: Convert to fraction form
   70,572/150,990 = 150,990/x
3. Step 3: Cross multiply
   70,572x = 150,990 × 150,990
4. Step 4: Simplify right side
   70,572x = 22,797,980,100
5. Step 5: Solve for x
   x = 22,797,980,100/70,572
6. Step 6: Final answer
   x = 323,045.69