Finding the Third Proportional to 129,735 and 284,062.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,735 : 284,062.50 = 284,062.50 : x
2. Step 2: Convert to fraction form
   129,735/284,062.50 = 284,062.50/x
3. Step 3: Cross multiply
   129,735x = 284,062.50 × 284,062.50
4. Step 4: Simplify right side
   129,735x = 80,691,503,906.25
5. Step 5: Solve for x
   x = 80,691,503,906.25/129,735
6. Step 6: Final answer
   x = 621,971.74