Finding the Third Proportional to 861,664.50 and 1,840,617

Step by Step Solution

1. Step 1: Write the proportion equation
   861,664.50 : 1,840,617 = 1,840,617 : x
2. Step 2: Convert to fraction form
   861,664.50/1,840,617 = 1,840,617/x
3. Step 3: Cross multiply
   861,664.50x = 1,840,617 × 1,840,617
4. Step 4: Simplify right side
   861,664.50x = 3,387,870,940,689
5. Step 5: Solve for x
   x = 3,387,870,940,689/861,664.50
6. Step 6: Final answer
   x = 3,931,775.00