Finding the Third Proportional to 12.83 and 28.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12.83 : 28.15 = 28.15 : x
2. Step 2: Convert to fraction form
   12.83/28.15 = 28.15/x
3. Step 3: Cross multiply
   12.83x = 28.15 × 28.15
4. Step 4: Simplify right side
   12.83x = 792.25
5. Step 5: Solve for x
   x = 792.25/12.83
6. Step 6: Final answer
   x = 61.76