Finding the Third Proportional to 548,404 and 847,499

Step by Step Solution

1. Step 1: Write the proportion equation
   548,404 : 847,499 = 847,499 : x
2. Step 2: Convert to fraction form
   548,404/847,499 = 847,499/x
3. Step 3: Cross multiply
   548,404x = 847,499 × 847,499
4. Step 4: Simplify right side
   548,404x = 718,254,555,001
5. Step 5: Solve for x
   x = 718,254,555,001/548,404
6. Step 6: Final answer
   x = 1,309,717.94