Finding the Third Proportional to 40,154.50 and 58,791.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,154.50 : 58,791.50 = 58,791.50 : x
2. Step 2: Convert to fraction form
   40,154.50/58,791.50 = 58,791.50/x
3. Step 3: Cross multiply
   40,154.50x = 58,791.50 × 58,791.50
4. Step 4: Simplify right side
   40,154.50x = 3,456,440,472.25
5. Step 5: Solve for x
   x = 3,456,440,472.25/40,154.50
6. Step 6: Final answer
   x = 86,078.53