Finding the Third Proportional to 647,858.25 and 1,413,632.25

Step by Step Solution

1. Step 1: Write the proportion equation
   647,858.25 : 1,413,632.25 = 1,413,632.25 : x
2. Step 2: Convert to fraction form
   647,858.25/1,413,632.25 = 1,413,632.25/x
3. Step 3: Cross multiply
   647,858.25x = 1,413,632.25 × 1,413,632.25
4. Step 4: Simplify right side
   647,858.25x = 1,998,356,138,240.06
5. Step 5: Solve for x
   x = 1,998,356,138,240.06/647,858.25
6. Step 6: Final answer
   x = 3,084,557.68