Finding the Third Proportional to 104.81 and 173.91

Step by Step Solution

1. Step 1: Write the proportion equation
   104.81 : 173.91 = 173.91 : x
2. Step 2: Convert to fraction form
   104.81/173.91 = 173.91/x
3. Step 3: Cross multiply
   104.81x = 173.91 × 173.91
4. Step 4: Simplify right side
   104.81x = 30,243.38
5. Step 5: Solve for x
   x = 30,243.38/104.81
6. Step 6: Final answer
   x = 288.55