Finding the Third Proportional to 2.68 and 5.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2.68 : 5.72 = 5.72 : x
2. Step 2: Convert to fraction form
   2.68/5.72 = 5.72/x
3. Step 3: Cross multiply
   2.68x = 5.72 × 5.72
4. Step 4: Simplify right side
   2.68x = 32.73
5. Step 5: Solve for x
   x = 32.73/2.68
6. Step 6: Final answer
   x = 12.21