Finding the Third Proportional to 13,891 and 19,849.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,891 : 19,849.50 = 19,849.50 : x
2. Step 2: Convert to fraction form
   13,891/19,849.50 = 19,849.50/x
3. Step 3: Cross multiply
   13,891x = 19,849.50 × 19,849.50
4. Step 4: Simplify right side
   13,891x = 394,002,650.25
5. Step 5: Solve for x
   x = 394,002,650.25/13,891
6. Step 6: Final answer
   x = 28,363.88