Finding the Third Proportional to 27.05 and 57.43

Step by Step Solution

1. Step 1: Write the proportion equation
   27.05 : 57.43 = 57.43 : x
2. Step 2: Convert to fraction form
   27.05/57.43 = 57.43/x
3. Step 3: Cross multiply
   27.05x = 57.43 × 57.43
4. Step 4: Simplify right side
   27.05x = 3,297.94
5. Step 5: Solve for x
   x = 3,297.94/27.05
6. Step 6: Final answer
   x = 121.91