Finding the Third Proportional to 487,609.03 and 647,002.69

Step by Step Solution

1. Step 1: Write the proportion equation
   487,609.03 : 647,002.69 = 647,002.69 : x
2. Step 2: Convert to fraction form
   487,609.03/647,002.69 = 647,002.69/x
3. Step 3: Cross multiply
   487,609.03x = 647,002.69 × 647,002.69
4. Step 4: Simplify right side
   487,609.03x = 418,612,477,632.22
5. Step 5: Solve for x
   x = 418,612,477,632.22/487,609.03
6. Step 6: Final answer
   x = 858,500.25