Finding the Third Proportional to 721,564 and 1,566,086

Step by Step Solution

1. Step 1: Write the proportion equation
   721,564 : 1,566,086 = 1,566,086 : x
2. Step 2: Convert to fraction form
   721,564/1,566,086 = 1,566,086/x
3. Step 3: Cross multiply
   721,564x = 1,566,086 × 1,566,086
4. Step 4: Simplify right side
   721,564x = 2,452,625,359,396
5. Step 5: Solve for x
   x = 2,452,625,359,396/721,564
6. Step 6: Final answer
   x = 3,399,040.64