Finding the Third Proportional to 571,718.25 and 836,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   571,718.25 : 836,086.50 = 836,086.50 : x
2. Step 2: Convert to fraction form
   571,718.25/836,086.50 = 836,086.50/x
3. Step 3: Cross multiply
   571,718.25x = 836,086.50 × 836,086.50
4. Step 4: Simplify right side
   571,718.25x = 699,040,635,482.25
5. Step 5: Solve for x
   x = 699,040,635,482.25/571,718.25
6. Step 6: Final answer
   x = 1,222,701.28