Finding the Third Proportional to 6.69 and 10.63

Step by Step Solution

1. Step 1: Write the proportion equation
   6.69 : 10.63 = 10.63 : x
2. Step 2: Convert to fraction form
   6.69/10.63 = 10.63/x
3. Step 3: Cross multiply
   6.69x = 10.63 × 10.63
4. Step 4: Simplify right side
   6.69x = 112.89
5. Step 5: Solve for x
   x = 112.89/6.69
6. Step 6: Final answer
   x = 16.88