Finding the Third Proportional to 10,348 and 13,890

Step by Step Solution

1. Step 1: Write the proportion equation
   10,348 : 13,890 = 13,890 : x
2. Step 2: Convert to fraction form
   10,348/13,890 = 13,890/x
3. Step 3: Cross multiply
   10,348x = 13,890 × 13,890
4. Step 4: Simplify right side
   10,348x = 192,932,100
5. Step 5: Solve for x
   x = 192,932,100/10,348
6. Step 6: Final answer
   x = 18,644.39