Finding the Third Proportional to 57.25 and 88.56

Step by Step Solution

1. Step 1: Write the proportion equation
   57.25 : 88.56 = 88.56 : x
2. Step 2: Convert to fraction form
   57.25/88.56 = 88.56/x
3. Step 3: Cross multiply
   57.25x = 88.56 × 88.56
4. Step 4: Simplify right side
   57.25x = 7,843.32
5. Step 5: Solve for x
   x = 7,843.32/57.25
6. Step 6: Final answer
   x = 137.00