Finding the Third Proportional to 488,613.50 and 747,451

Step by Step Solution

1. Step 1: Write the proportion equation
   488,613.50 : 747,451 = 747,451 : x
2. Step 2: Convert to fraction form
   488,613.50/747,451 = 747,451/x
3. Step 3: Cross multiply
   488,613.50x = 747,451 × 747,451
4. Step 4: Simplify right side
   488,613.50x = 558,682,997,401
5. Step 5: Solve for x
   x = 558,682,997,401/488,613.50
6. Step 6: Final answer
   x = 1,143,404.75