Finding the Third Proportional to 216,540 and 482,292

Step by Step Solution

1. Step 1: Write the proportion equation
   216,540 : 482,292 = 482,292 : x
2. Step 2: Convert to fraction form
   216,540/482,292 = 482,292/x
3. Step 3: Cross multiply
   216,540x = 482,292 × 482,292
4. Step 4: Simplify right side
   216,540x = 232,605,573,264
5. Step 5: Solve for x
   x = 232,605,573,264/216,540
6. Step 6: Final answer
   x = 1,074,192.17