Finding the Third Proportional to 39,163.50 and 72,039.38

Step by Step Solution

1. Step 1: Write the proportion equation
   39,163.50 : 72,039.38 = 72,039.38 : x
2. Step 2: Convert to fraction form
   39,163.50/72,039.38 = 72,039.38/x
3. Step 3: Cross multiply
   39,163.50x = 72,039.38 × 72,039.38
4. Step 4: Simplify right side
   39,163.50x = 5,189,671,550.39
5. Step 5: Solve for x
   x = 5,189,671,550.39/39,163.50
6. Step 6: Final answer
   x = 132,512.97