Finding the Third Proportional to 152,616 and 331,502

Step by Step Solution

1. Step 1: Write the proportion equation
   152,616 : 331,502 = 331,502 : x
2. Step 2: Convert to fraction form
   152,616/331,502 = 331,502/x
3. Step 3: Cross multiply
   152,616x = 331,502 × 331,502
4. Step 4: Simplify right side
   152,616x = 109,893,576,004
5. Step 5: Solve for x
   x = 109,893,576,004/152,616
6. Step 6: Final answer
   x = 720,065.89