Finding the Third Proportional to 721,053.50 and 1,131,078

Step by Step Solution

1. Step 1: Write the proportion equation
   721,053.50 : 1,131,078 = 1,131,078 : x
2. Step 2: Convert to fraction form
   721,053.50/1,131,078 = 1,131,078/x
3. Step 3: Cross multiply
   721,053.50x = 1,131,078 × 1,131,078
4. Step 4: Simplify right side
   721,053.50x = 1,279,337,442,084
5. Step 5: Solve for x
   x = 1,279,337,442,084/721,053.50
6. Step 6: Final answer
   x = 1,774,261.47