Finding the Third Proportional to 115,018.50 and 250,287

Step by Step Solution

1. Step 1: Write the proportion equation
   115,018.50 : 250,287 = 250,287 : x
2. Step 2: Convert to fraction form
   115,018.50/250,287 = 250,287/x
3. Step 3: Cross multiply
   115,018.50x = 250,287 × 250,287
4. Step 4: Simplify right side
   115,018.50x = 62,643,582,369
5. Step 5: Solve for x
   x = 62,643,582,369/115,018.50
6. Step 6: Final answer
   x = 544,639.19