Finding the Third Proportional to 627,700.50 and 1,288,449

Step by Step Solution

1. Step 1: Write the proportion equation
   627,700.50 : 1,288,449 = 1,288,449 : x
2. Step 2: Convert to fraction form
   627,700.50/1,288,449 = 1,288,449/x
3. Step 3: Cross multiply
   627,700.50x = 1,288,449 × 1,288,449
4. Step 4: Simplify right side
   627,700.50x = 1,660,100,825,601
5. Step 5: Solve for x
   x = 1,660,100,825,601/627,700.50
6. Step 6: Final answer
   x = 2,644,733.95