Finding the Third Proportional to 104.18 and 123.16

Step by Step Solution

1. Step 1: Write the proportion equation
   104.18 : 123.16 = 123.16 : x
2. Step 2: Convert to fraction form
   104.18/123.16 = 123.16/x
3. Step 3: Cross multiply
   104.18x = 123.16 × 123.16
4. Step 4: Simplify right side
   104.18x = 15,168.66
5. Step 5: Solve for x
   x = 15,168.66/104.18
6. Step 6: Final answer
   x = 145.61