Finding the Third Proportional to 23.81 and 57.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23.81 : 57.56 = 57.56 : x
2. Step 2: Convert to fraction form
   23.81/57.56 = 57.56/x
3. Step 3: Cross multiply
   23.81x = 57.56 × 57.56
4. Step 4: Simplify right side
   23.81x = 3,313.44
5. Step 5: Solve for x
   x = 3,313.44/23.81
6. Step 6: Final answer
   x = 139.15