Finding the Third Proportional to 4.82 and 10.05

Step by Step Solution

1. Step 1: Write the proportion equation
   4.82 : 10.05 = 10.05 : x
2. Step 2: Convert to fraction form
   4.82/10.05 = 10.05/x
3. Step 3: Cross multiply
   4.82x = 10.05 × 10.05
4. Step 4: Simplify right side
   4.82x = 101.10
5. Step 5: Solve for x
   x = 101.10/4.82
6. Step 6: Final answer
   x = 20.99