Finding the Third Proportional to 116,142 and 251,292

Step by Step Solution

1. Step 1: Write the proportion equation
   116,142 : 251,292 = 251,292 : x
2. Step 2: Convert to fraction form
   116,142/251,292 = 251,292/x
3. Step 3: Cross multiply
   116,142x = 251,292 × 251,292
4. Step 4: Simplify right side
   116,142x = 63,147,669,264
5. Step 5: Solve for x
   x = 63,147,669,264/116,142
6. Step 6: Final answer
   x = 543,710.88