Finding the Third Proportional to 41,643 and 54,040.50

Step by Step Solution

1. Step 1: Write the proportion equation
   41,643 : 54,040.50 = 54,040.50 : x
2. Step 2: Convert to fraction form
   41,643/54,040.50 = 54,040.50/x
3. Step 3: Cross multiply
   41,643x = 54,040.50 × 54,040.50
4. Step 4: Simplify right side
   41,643x = 2,920,375,640.25
5. Step 5: Solve for x
   x = 2,920,375,640.25/41,643
6. Step 6: Final answer
   x = 70,128.85