Finding the Third Proportional to 39,145.50 and 55,960.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,145.50 : 55,960.75 = 55,960.75 : x
2. Step 2: Convert to fraction form
   39,145.50/55,960.75 = 55,960.75/x
3. Step 3: Cross multiply
   39,145.50x = 55,960.75 × 55,960.75
4. Step 4: Simplify right side
   39,145.50x = 3,131,605,540.56
5. Step 5: Solve for x
   x = 3,131,605,540.56/39,145.50
6. Step 6: Final answer
   x = 79,999.12