Finding the Third Proportional to 425,181 and 658,309.50

Step by Step Solution

1. Step 1: Write the proportion equation
   425,181 : 658,309.50 = 658,309.50 : x
2. Step 2: Convert to fraction form
   425,181/658,309.50 = 658,309.50/x
3. Step 3: Cross multiply
   425,181x = 658,309.50 × 658,309.50
4. Step 4: Simplify right side
   425,181x = 433,371,397,790.25
5. Step 5: Solve for x
   x = 433,371,397,790.25/425,181
6. Step 6: Final answer
   x = 1,019,263.32