Finding the Third Proportional to 488,616.50 and 747,456.50

Step by Step Solution

1. Step 1: Write the proportion equation
   488,616.50 : 747,456.50 = 747,456.50 : x
2. Step 2: Convert to fraction form
   488,616.50/747,456.50 = 747,456.50/x
3. Step 3: Cross multiply
   488,616.50x = 747,456.50 × 747,456.50
4. Step 4: Simplify right side
   488,616.50x = 558,691,219,392.25
5. Step 5: Solve for x
   x = 558,691,219,392.25/488,616.50
6. Step 6: Final answer
   x = 1,143,414.56