Finding the Third Proportional to 105.38 and 202.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105.38 : 202.88 = 202.88 : x
2. Step 2: Convert to fraction form
   105.38/202.88 = 202.88/x
3. Step 3: Cross multiply
   105.38x = 202.88 × 202.88
4. Step 4: Simplify right side
   105.38x = 41,158.27
5. Step 5: Solve for x
   x = 41,158.27/105.38
6. Step 6: Final answer
   x = 390.59