Finding the Third Proportional to 152,931 and 329,460

Step by Step Solution

1. Step 1: Write the proportion equation
   152,931 : 329,460 = 329,460 : x
2. Step 2: Convert to fraction form
   152,931/329,460 = 329,460/x
3. Step 3: Cross multiply
   152,931x = 329,460 × 329,460
4. Step 4: Simplify right side
   152,931x = 108,543,891,600
5. Step 5: Solve for x
   x = 108,543,891,600/152,931
6. Step 6: Final answer
   x = 709,757.29