Finding the Third Proportional to 207,981.50 and 329,045

Step by Step Solution

1. Step 1: Write the proportion equation
   207,981.50 : 329,045 = 329,045 : x
2. Step 2: Convert to fraction form
   207,981.50/329,045 = 329,045/x
3. Step 3: Cross multiply
   207,981.50x = 329,045 × 329,045
4. Step 4: Simplify right side
   207,981.50x = 108,270,612,025
5. Step 5: Solve for x
   x = 108,270,612,025/207,981.50
6. Step 6: Final answer
   x = 520,578.09