Finding the Third Proportional to 28.69 and 28.69

Step by Step Solution

1. Step 1: Write the proportion equation
   28.69 : 28.69 = 28.69 : x
2. Step 2: Convert to fraction form
   28.69/28.69 = 28.69/x
3. Step 3: Cross multiply
   28.69x = 28.69 × 28.69
4. Step 4: Simplify right side
   28.69x = 822.97
5. Step 5: Solve for x
   x = 822.97/28.69
6. Step 6: Final answer
   x = 28.69