Finding the Third Proportional to 90.44 and 141.47

Step by Step Solution

1. Step 1: Write the proportion equation
   90.44 : 141.47 = 141.47 : x
2. Step 2: Convert to fraction form
   90.44/141.47 = 141.47/x
3. Step 3: Cross multiply
   90.44x = 141.47 × 141.47
4. Step 4: Simplify right side
   90.44x = 20,013.41
5. Step 5: Solve for x
   x = 20,013.41/90.44
6. Step 6: Final answer
   x = 221.30