Finding the Third Proportional to 10,520 and 13,884

Step by Step Solution

1. Step 1: Write the proportion equation
   10,520 : 13,884 = 13,884 : x
2. Step 2: Convert to fraction form
   10,520/13,884 = 13,884/x
3. Step 3: Cross multiply
   10,520x = 13,884 × 13,884
4. Step 4: Simplify right side
   10,520x = 192,765,456
5. Step 5: Solve for x
   x = 192,765,456/10,520
6. Step 6: Final answer
   x = 18,323.71