Finding the Third Proportional to 152,908 and 329,346

Step by Step Solution

1. Step 1: Write the proportion equation
   152,908 : 329,346 = 329,346 : x
2. Step 2: Convert to fraction form
   152,908/329,346 = 329,346/x
3. Step 3: Cross multiply
   152,908x = 329,346 × 329,346
4. Step 4: Simplify right side
   152,908x = 108,468,787,716
5. Step 5: Solve for x
   x = 108,468,787,716/152,908
6. Step 6: Final answer
   x = 709,372.88