Finding the Third Proportional to 40,615.50 and 84,481.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,615.50 : 84,481.50 = 84,481.50 : x
2. Step 2: Convert to fraction form
   40,615.50/84,481.50 = 84,481.50/x
3. Step 3: Cross multiply
   40,615.50x = 84,481.50 × 84,481.50
4. Step 4: Simplify right side
   40,615.50x = 7,137,123,842.25
5. Step 5: Solve for x
   x = 7,137,123,842.25/40,615.50
6. Step 6: Final answer
   x = 175,724.14