Finding the Third Proportional to 13,608 and 19,500.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,608 : 19,500.75 = 19,500.75 : x
2. Step 2: Convert to fraction form
   13,608/19,500.75 = 19,500.75/x
3. Step 3: Cross multiply
   13,608x = 19,500.75 × 19,500.75
4. Step 4: Simplify right side
   13,608x = 380,279,250.56
5. Step 5: Solve for x
   x = 380,279,250.56/13,608
6. Step 6: Final answer
   x = 27,945.27