Finding the Third Proportional to 8,749.50 and 13,169.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,749.50 : 13,169.25 = 13,169.25 : x
2. Step 2: Convert to fraction form
   8,749.50/13,169.25 = 13,169.25/x
3. Step 3: Cross multiply
   8,749.50x = 13,169.25 × 13,169.25
4. Step 4: Simplify right side
   8,749.50x = 173,429,145.56
5. Step 5: Solve for x
   x = 173,429,145.56/8,749.50
6. Step 6: Final answer
   x = 19,821.61