Finding the Third Proportional to 112,261 and 245,663

Step by Step Solution

1. Step 1: Write the proportion equation
   112,261 : 245,663 = 245,663 : x
2. Step 2: Convert to fraction form
   112,261/245,663 = 245,663/x
3. Step 3: Cross multiply
   112,261x = 245,663 × 245,663
4. Step 4: Simplify right side
   112,261x = 60,350,309,569
5. Step 5: Solve for x
   x = 60,350,309,569/112,261
6. Step 6: Final answer
   x = 537,589.27