Finding the Third Proportional to 711,366 and 1,040,422.50

Step by Step Solution

1. Step 1: Write the proportion equation
   711,366 : 1,040,422.50 = 1,040,422.50 : x
2. Step 2: Convert to fraction form
   711,366/1,040,422.50 = 1,040,422.50/x
3. Step 3: Cross multiply
   711,366x = 1,040,422.50 × 1,040,422.50
4. Step 4: Simplify right side
   711,366x = 1,082,478,978,506.25
5. Step 5: Solve for x
   x = 1,082,478,978,506.25/711,366
6. Step 6: Final answer
   x = 1,521,690.63