Finding the Third Proportional to 79.73 and 126.56

Step by Step Solution

1. Step 1: Write the proportion equation
   79.73 : 126.56 = 126.56 : x
2. Step 2: Convert to fraction form
   79.73/126.56 = 126.56/x
3. Step 3: Cross multiply
   79.73x = 126.56 × 126.56
4. Step 4: Simplify right side
   79.73x = 16,018.07
5. Step 5: Solve for x
   x = 16,018.07/79.73
6. Step 6: Final answer
   x = 200.89