Finding the Third Proportional to 2.50 and 3.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2.50 : 3.72 = 3.72 : x
2. Step 2: Convert to fraction form
   2.50/3.72 = 3.72/x
3. Step 3: Cross multiply
   2.50x = 3.72 × 3.72
4. Step 4: Simplify right side
   2.50x = 13.85
5. Step 5: Solve for x
   x = 13.85/2.50
6. Step 6: Final answer
   x = 5.53