Finding the Third Proportional to 22.78 and 22.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22.78 : 22.78 = 22.78 : x
2. Step 2: Convert to fraction form
   22.78/22.78 = 22.78/x
3. Step 3: Cross multiply
   22.78x = 22.78 × 22.78
4. Step 4: Simplify right side
   22.78x = 518.99
5. Step 5: Solve for x
   x = 518.99/22.78
6. Step 6: Final answer
   x = 22.78