Finding the Third Proportional to 27.91 and 60.61

Step by Step Solution

1. Step 1: Write the proportion equation
   27.91 : 60.61 = 60.61 : x
2. Step 2: Convert to fraction form
   27.91/60.61 = 60.61/x
3. Step 3: Cross multiply
   27.91x = 60.61 × 60.61
4. Step 4: Simplify right side
   27.91x = 3,673.50
5. Step 5: Solve for x
   x = 3,673.50/27.91
6. Step 6: Final answer
   x = 131.60