Finding the Third Proportional to 98.86 and 126.56

Step by Step Solution

1. Step 1: Write the proportion equation
   98.86 : 126.56 = 126.56 : x
2. Step 2: Convert to fraction form
   98.86/126.56 = 126.56/x
3. Step 3: Cross multiply
   98.86x = 126.56 × 126.56
4. Step 4: Simplify right side
   98.86x = 16,018.07
5. Step 5: Solve for x
   x = 16,018.07/98.86
6. Step 6: Final answer
   x = 162.03