Finding the Third Proportional to 22.78 and 34.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22.78 : 34.88 = 34.88 : x
2. Step 2: Convert to fraction form
   22.78/34.88 = 34.88/x
3. Step 3: Cross multiply
   22.78x = 34.88 × 34.88
4. Step 4: Simplify right side
   22.78x = 1,216.88
5. Step 5: Solve for x
   x = 1,216.88/22.78
6. Step 6: Final answer
   x = 53.42