Finding the Third Proportional to 99.56 and 110.06

Step by Step Solution

1. Step 1: Write the proportion equation
   99.56 : 110.06 = 110.06 : x
2. Step 2: Convert to fraction form
   99.56/110.06 = 110.06/x
3. Step 3: Cross multiply
   99.56x = 110.06 × 110.06
4. Step 4: Simplify right side
   99.56x = 12,113.75
5. Step 5: Solve for x
   x = 12,113.75/99.56
6. Step 6: Final answer
   x = 121.67