Finding the Third Proportional to 25.56 and 56.31

Step by Step Solution

1. Step 1: Write the proportion equation
   25.56 : 56.31 = 56.31 : x
2. Step 2: Convert to fraction form
   25.56/56.31 = 56.31/x
3. Step 3: Cross multiply
   25.56x = 56.31 × 56.31
4. Step 4: Simplify right side
   25.56x = 3,171.10
5. Step 5: Solve for x
   x = 3,171.10/25.56
6. Step 6: Final answer
   x = 124.05