Finding the Third Proportional to 149,632 and 328,784

Step by Step Solution

1. Step 1: Write the proportion equation
   149,632 : 328,784 = 328,784 : x
2. Step 2: Convert to fraction form
   149,632/328,784 = 328,784/x
3. Step 3: Cross multiply
   149,632x = 328,784 × 328,784
4. Step 4: Simplify right side
   149,632x = 108,098,918,656
5. Step 5: Solve for x
   x = 108,098,918,656/149,632
6. Step 6: Final answer
   x = 722,431.82