Finding the Third Proportional to 27.42 and 55.59

Step by Step Solution

1. Step 1: Write the proportion equation
   27.42 : 55.59 = 55.59 : x
2. Step 2: Convert to fraction form
   27.42/55.59 = 55.59/x
3. Step 3: Cross multiply
   27.42x = 55.59 × 55.59
4. Step 4: Simplify right side
   27.42x = 3,090.67
5. Step 5: Solve for x
   x = 3,090.67/27.42
6. Step 6: Final answer
   x = 112.71