Finding the Third Proportional to 565,864 and 1,231,256

Step by Step Solution

1. Step 1: Write the proportion equation
   565,864 : 1,231,256 = 1,231,256 : x
2. Step 2: Convert to fraction form
   565,864/1,231,256 = 1,231,256/x
3. Step 3: Cross multiply
   565,864x = 1,231,256 × 1,231,256
4. Step 4: Simplify right side
   565,864x = 1,515,991,337,536
5. Step 5: Solve for x
   x = 1,515,991,337,536/565,864
6. Step 6: Final answer
   x = 2,679,073.66