Finding the Third Proportional to 5,653.50 and 12,279.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,653.50 : 12,279.50 = 12,279.50 : x
2. Step 2: Convert to fraction form
   5,653.50/12,279.50 = 12,279.50/x
3. Step 3: Cross multiply
   5,653.50x = 12,279.50 × 12,279.50
4. Step 4: Simplify right side
   5,653.50x = 150,786,120.25
5. Step 5: Solve for x
   x = 150,786,120.25/5,653.50
6. Step 6: Final answer
   x = 26,671.29