Finding the Third Proportional to 2.27 and 3.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2.27 : 3.55 = 3.55 : x
2. Step 2: Convert to fraction form
   2.27/3.55 = 3.55/x
3. Step 3: Cross multiply
   2.27x = 3.55 × 3.55
4. Step 4: Simplify right side
   2.27x = 12.61
5. Step 5: Solve for x
   x = 12.61/2.27
6. Step 6: Final answer
   x = 5.55