Finding the Third Proportional to 13,889 and 19,443

Step by Step Solution

1. Step 1: Write the proportion equation
   13,889 : 19,443 = 19,443 : x
2. Step 2: Convert to fraction form
   13,889/19,443 = 19,443/x
3. Step 3: Cross multiply
   13,889x = 19,443 × 19,443
4. Step 4: Simplify right side
   13,889x = 378,030,249
5. Step 5: Solve for x
   x = 378,030,249/13,889
6. Step 6: Final answer
   x = 27,217.96