Finding the Third Proportional to 13,891 and 30,389

Step by Step Solution

1. Step 1: Write the proportion equation
   13,891 : 30,389 = 30,389 : x
2. Step 2: Convert to fraction form
   13,891/30,389 = 30,389/x
3. Step 3: Cross multiply
   13,891x = 30,389 × 30,389
4. Step 4: Simplify right side
   13,891x = 923,491,321
5. Step 5: Solve for x
   x = 923,491,321/13,891
6. Step 6: Final answer
   x = 66,481.27