Finding the Third Proportional to 647,453.25 and 1,320,610.50

Step by Step Solution

1. Step 1: Write the proportion equation
   647,453.25 : 1,320,610.50 = 1,320,610.50 : x
2. Step 2: Convert to fraction form
   647,453.25/1,320,610.50 = 1,320,610.50/x
3. Step 3: Cross multiply
   647,453.25x = 1,320,610.50 × 1,320,610.50
4. Step 4: Simplify right side
   647,453.25x = 1,744,012,092,710.25
5. Step 5: Solve for x
   x = 1,744,012,092,710.25/647,453.25
6. Step 6: Final answer
   x = 2,693,649.45