Finding the Third Proportional to 11.25 and 11.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11.25 : 11.25 = 11.25 : x
2. Step 2: Convert to fraction form
   11.25/11.25 = 11.25/x
3. Step 3: Cross multiply
   11.25x = 11.25 × 11.25
4. Step 4: Simplify right side
   11.25x = 126.56
5. Step 5: Solve for x
   x = 126.56/11.25
6. Step 6: Final answer
   x = 11.25