Finding the Third Proportional to 81,610.50 and 173,017.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,610.50 : 173,017.50 = 173,017.50 : x
2. Step 2: Convert to fraction form
   81,610.50/173,017.50 = 173,017.50/x
3. Step 3: Cross multiply
   81,610.50x = 173,017.50 × 173,017.50
4. Step 4: Simplify right side
   81,610.50x = 29,935,055,306.25
5. Step 5: Solve for x
   x = 29,935,055,306.25/81,610.50
6. Step 6: Final answer
   x = 366,803.97