Finding the Third Proportional to 104.50 and 113.88

Step by Step Solution

1. Step 1: Write the proportion equation
   104.50 : 113.88 = 113.88 : x
2. Step 2: Convert to fraction form
   104.50/113.88 = 113.88/x
3. Step 3: Cross multiply
   104.50x = 113.88 × 113.88
4. Step 4: Simplify right side
   104.50x = 12,967.52
5. Step 5: Solve for x
   x = 12,967.52/104.50
6. Step 6: Final answer
   x = 124.09