Finding the Third Proportional to 423,429 and 658,471.50

Step by Step Solution

1. Step 1: Write the proportion equation
   423,429 : 658,471.50 = 658,471.50 : x
2. Step 2: Convert to fraction form
   423,429/658,471.50 = 658,471.50/x
3. Step 3: Cross multiply
   423,429x = 658,471.50 × 658,471.50
4. Step 4: Simplify right side
   423,429x = 433,584,716,312.25
5. Step 5: Solve for x
   x = 433,584,716,312.25/423,429
6. Step 6: Final answer
   x = 1,023,984.46