Finding the Third Proportional to 647,355 and 980,028.75

Step by Step Solution

1. Step 1: Write the proportion equation
   647,355 : 980,028.75 = 980,028.75 : x
2. Step 2: Convert to fraction form
   647,355/980,028.75 = 980,028.75/x
3. Step 3: Cross multiply
   647,355x = 980,028.75 × 980,028.75
4. Step 4: Simplify right side
   647,355x = 960,456,350,826.56
5. Step 5: Solve for x
   x = 960,456,350,826.56/647,355
6. Step 6: Final answer
   x = 1,483,662.52