Finding the Third Proportional to 687,499.50 and 1,480,317

Step by Step Solution

1. Step 1: Write the proportion equation
   687,499.50 : 1,480,317 = 1,480,317 : x
2. Step 2: Convert to fraction form
   687,499.50/1,480,317 = 1,480,317/x
3. Step 3: Cross multiply
   687,499.50x = 1,480,317 × 1,480,317
4. Step 4: Simplify right side
   687,499.50x = 2,191,338,420,489
5. Step 5: Solve for x
   x = 2,191,338,420,489/687,499.50
6. Step 6: Final answer
   x = 3,187,403.66