Finding the Third Proportional to 815,879.25 and 1,146,909.38

Step by Step Solution

1. Step 1: Write the proportion equation
   815,879.25 : 1,146,909.38 = 1,146,909.38 : x
2. Step 2: Convert to fraction form
   815,879.25/1,146,909.38 = 1,146,909.38/x
3. Step 3: Cross multiply
   815,879.25x = 1,146,909.38 × 1,146,909.38
4. Step 4: Simplify right side
   815,879.25x = 1,315,401,114,462.89
5. Step 5: Solve for x
   x = 1,315,401,114,462.89/815,879.25
6. Step 6: Final answer
   x = 1,612,249.75