Finding the Third Proportional to 115,018.50 and 251,360

Step by Step Solution

1. Step 1: Write the proportion equation
   115,018.50 : 251,360 = 251,360 : x
2. Step 2: Convert to fraction form
   115,018.50/251,360 = 251,360/x
3. Step 3: Cross multiply
   115,018.50x = 251,360 × 251,360
4. Step 4: Simplify right side
   115,018.50x = 63,181,849,600
5. Step 5: Solve for x
   x = 63,181,849,600/115,018.50
6. Step 6: Final answer
   x = 549,319.02