Finding the Third Proportional to 27.21 and 57.59

Step by Step Solution

1. Step 1: Write the proportion equation
   27.21 : 57.59 = 57.59 : x
2. Step 2: Convert to fraction form
   27.21/57.59 = 57.59/x
3. Step 3: Cross multiply
   27.21x = 57.59 × 57.59
4. Step 4: Simplify right side
   27.21x = 3,316.14
5. Step 5: Solve for x
   x = 3,316.14/27.21
6. Step 6: Final answer
   x = 121.87