Finding the Third Proportional to 101.06 and 221.39

Step by Step Solution

1. Step 1: Write the proportion equation
   101.06 : 221.39 = 221.39 : x
2. Step 2: Convert to fraction form
   101.06/221.39 = 221.39/x
3. Step 3: Cross multiply
   101.06x = 221.39 × 221.39
4. Step 4: Simplify right side
   101.06x = 49,013.81
5. Step 5: Solve for x
   x = 49,013.81/101.06
6. Step 6: Final answer
   x = 484.99