Finding the Third Proportional to 517,578 and 1,131,108

Step by Step Solution

1. Step 1: Write the proportion equation
   517,578 : 1,131,108 = 1,131,108 : x
2. Step 2: Convert to fraction form
   517,578/1,131,108 = 1,131,108/x
3. Step 3: Cross multiply
   517,578x = 1,131,108 × 1,131,108
4. Step 4: Simplify right side
   517,578x = 1,279,405,307,664
5. Step 5: Solve for x
   x = 1,279,405,307,664/517,578
6. Step 6: Final answer
   x = 2,471,908.21