Finding the Third Proportional to 4.82 and 10.18

Step by Step Solution

1. Step 1: Write the proportion equation
   4.82 : 10.18 = 10.18 : x
2. Step 2: Convert to fraction form
   4.82/10.18 = 10.18/x
3. Step 3: Cross multiply
   4.82x = 10.18 × 10.18
4. Step 4: Simplify right side
   4.82x = 103.55
5. Step 5: Solve for x
   x = 103.55/4.82
6. Step 6: Final answer
   x = 21.47