Finding the Third Proportional to 756,861 and 1,261,382.50

Step by Step Solution

1. Step 1: Write the proportion equation
   756,861 : 1,261,382.50 = 1,261,382.50 : x
2. Step 2: Convert to fraction form
   756,861/1,261,382.50 = 1,261,382.50/x
3. Step 3: Cross multiply
   756,861x = 1,261,382.50 × 1,261,382.50
4. Step 4: Simplify right side
   756,861x = 1,591,085,811,306.25
5. Step 5: Solve for x
   x = 1,591,085,811,306.25/756,861
6. Step 6: Final answer
   x = 2,102,216.67