Finding the Third Proportional to 245,706 and 517,650

Step by Step Solution

1. Step 1: Write the proportion equation
   245,706 : 517,650 = 517,650 : x
2. Step 2: Convert to fraction form
   245,706/517,650 = 517,650/x
3. Step 3: Cross multiply
   245,706x = 517,650 × 517,650
4. Step 4: Simplify right side
   245,706x = 267,961,522,500
5. Step 5: Solve for x
   x = 267,961,522,500/245,706
6. Step 6: Final answer
   x = 1,090,577.86