Finding the Third Proportional to 108,081 and 172,661.25

Step by Step Solution

1. Step 1: Write the proportion equation
   108,081 : 172,661.25 = 172,661.25 : x
2. Step 2: Convert to fraction form
   108,081/172,661.25 = 172,661.25/x
3. Step 3: Cross multiply
   108,081x = 172,661.25 × 172,661.25
4. Step 4: Simplify right side
   108,081x = 29,811,907,251.56
5. Step 5: Solve for x
   x = 29,811,907,251.56/108,081
6. Step 6: Final answer
   x = 275,829.31