Finding the Third Proportional to 72,879.75 and 96,855.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72,879.75 : 96,855.75 = 96,855.75 : x
2. Step 2: Convert to fraction form
   72,879.75/96,855.75 = 96,855.75/x
3. Step 3: Cross multiply
   72,879.75x = 96,855.75 × 96,855.75
4. Step 4: Simplify right side
   72,879.75x = 9,381,036,308.06
5. Step 5: Solve for x
   x = 9,381,036,308.06/72,879.75
6. Step 6: Final answer
   x = 128,719.38