Finding the Third Proportional to 485,469 and 753,763.50

Step by Step Solution

1. Step 1: Write the proportion equation
   485,469 : 753,763.50 = 753,763.50 : x
2. Step 2: Convert to fraction form
   485,469/753,763.50 = 753,763.50/x
3. Step 3: Cross multiply
   485,469x = 753,763.50 × 753,763.50
4. Step 4: Simplify right side
   485,469x = 568,159,413,932.25
5. Step 5: Solve for x
   x = 568,159,413,932.25/485,469
6. Step 6: Final answer
   x = 1,170,330.99