Finding the Third Proportional to 307,499 and 675,535

Step by Step Solution

1. Step 1: Write the proportion equation
   307,499 : 675,535 = 675,535 : x
2. Step 2: Convert to fraction form
   307,499/675,535 = 675,535/x
3. Step 3: Cross multiply
   307,499x = 675,535 × 675,535
4. Step 4: Simplify right side
   307,499x = 456,347,536,225
5. Step 5: Solve for x
   x = 456,347,536,225/307,499
6. Step 6: Final answer
   x = 1,484,061.85