Finding the Third Proportional to 56.97 and 112.69

Step by Step Solution

1. Step 1: Write the proportion equation
   56.97 : 112.69 = 112.69 : x
2. Step 2: Convert to fraction form
   56.97/112.69 = 112.69/x
3. Step 3: Cross multiply
   56.97x = 112.69 × 112.69
4. Step 4: Simplify right side
   56.97x = 12,698.47
5. Step 5: Solve for x
   x = 12,698.47/56.97
6. Step 6: Final answer
   x = 222.90