Finding the Third Proportional to 90.38 and 117.94

Step by Step Solution

1. Step 1: Write the proportion equation
   90.38 : 117.94 = 117.94 : x
2. Step 2: Convert to fraction form
   90.38/117.94 = 117.94/x
3. Step 3: Cross multiply
   90.38x = 117.94 × 117.94
4. Step 4: Simplify right side
   90.38x = 13,909.25
5. Step 5: Solve for x
   x = 13,909.25/90.38
6. Step 6: Final answer
   x = 153.91