Finding the Third Proportional to 687,499 and 1,480,315

Step by Step Solution

1. Step 1: Write the proportion equation
   687,499 : 1,480,315 = 1,480,315 : x
2. Step 2: Convert to fraction form
   687,499/1,480,315 = 1,480,315/x
3. Step 3: Cross multiply
   687,499x = 1,480,315 × 1,480,315
4. Step 4: Simplify right side
   687,499x = 2,191,332,499,225
5. Step 5: Solve for x
   x = 2,191,332,499,225/687,499
6. Step 6: Final answer
   x = 3,187,397.36