Finding the Third Proportional to 152,974 and 329,388

Step by Step Solution

1. Step 1: Write the proportion equation
   152,974 : 329,388 = 329,388 : x
2. Step 2: Convert to fraction form
   152,974/329,388 = 329,388/x
3. Step 3: Cross multiply
   152,974x = 329,388 × 329,388
4. Step 4: Simplify right side
   152,974x = 108,496,454,544
5. Step 5: Solve for x
   x = 108,496,454,544/152,974
6. Step 6: Final answer
   x = 709,247.68