Finding the Third Proportional to 115.94 and 171.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115.94 : 171.72 = 171.72 : x
2. Step 2: Convert to fraction form
   115.94/171.72 = 171.72/x
3. Step 3: Cross multiply
   115.94x = 171.72 × 171.72
4. Step 4: Simplify right side
   115.94x = 29,487.33
5. Step 5: Solve for x
   x = 29,487.33/115.94
6. Step 6: Final answer
   x = 254.34