Finding the Third Proportional to 647,959.50 and 1,439,734.50

Step by Step Solution

1. Step 1: Write the proportion equation
   647,959.50 : 1,439,734.50 = 1,439,734.50 : x
2. Step 2: Convert to fraction form
   647,959.50/1,439,734.50 = 1,439,734.50/x
3. Step 3: Cross multiply
   647,959.50x = 1,439,734.50 × 1,439,734.50
4. Step 4: Simplify right side
   647,959.50x = 2,072,835,430,490.25
5. Step 5: Solve for x
   x = 2,072,835,430,490.25/647,959.50
6. Step 6: Final answer
   x = 3,199,020.05