Finding the Third Proportional to 517,810 and 1,107,578

Step by Step Solution

1. Step 1: Write the proportion equation
   517,810 : 1,107,578 = 1,107,578 : x
2. Step 2: Convert to fraction form
   517,810/1,107,578 = 1,107,578/x
3. Step 3: Cross multiply
   517,810x = 1,107,578 × 1,107,578
4. Step 4: Simplify right side
   517,810x = 1,226,729,026,084
5. Step 5: Solve for x
   x = 1,226,729,026,084/517,810
6. Step 6: Final answer
   x = 2,369,071.72