Finding the Third Proportional to 43,108.50 and 57,919.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,108.50 : 57,919.50 = 57,919.50 : x
2. Step 2: Convert to fraction form
   43,108.50/57,919.50 = 57,919.50/x
3. Step 3: Cross multiply
   43,108.50x = 57,919.50 × 57,919.50
4. Step 4: Simplify right side
   43,108.50x = 3,354,668,480.25
5. Step 5: Solve for x
   x = 3,354,668,480.25/43,108.50
6. Step 6: Final answer
   x = 77,819.19