Finding the Third Proportional to 4.99 and 10.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4.99 : 10.72 = 10.72 : x
2. Step 2: Convert to fraction form
   4.99/10.72 = 10.72/x
3. Step 3: Cross multiply
   4.99x = 10.72 × 10.72
4. Step 4: Simplify right side
   4.99x = 114.98
5. Step 5: Solve for x
   x = 114.98/4.99
6. Step 6: Final answer
   x = 23.03