Finding the Third Proportional to 115,016.31 and 251,355.69

Step by Step Solution

1. Step 1: Write the proportion equation
   115,016.31 : 251,355.69 = 251,355.69 : x
2. Step 2: Convert to fraction form
   115,016.31/251,355.69 = 251,355.69/x
3. Step 3: Cross multiply
   115,016.31x = 251,355.69 × 251,355.69
4. Step 4: Simplify right side
   115,016.31x = 63,179,681,638.60
5. Step 5: Solve for x
   x = 63,179,681,638.60/115,016.31
6. Step 6: Final answer
   x = 549,310.62