Finding the Third Proportional to 517,863 and 1,107,688

Step by Step Solution

1. Step 1: Write the proportion equation
   517,863 : 1,107,688 = 1,107,688 : x
2. Step 2: Convert to fraction form
   517,863/1,107,688 = 1,107,688/x
3. Step 3: Cross multiply
   517,863x = 1,107,688 × 1,107,688
4. Step 4: Simplify right side
   517,863x = 1,226,972,705,344
5. Step 5: Solve for x
   x = 1,226,972,705,344/517,863
6. Step 6: Final answer
   x = 2,369,299.81