Finding the Third Proportional to 10,243 and 13,902

Step by Step Solution

1. Step 1: Write the proportion equation
   10,243 : 13,902 = 13,902 : x
2. Step 2: Convert to fraction form
   10,243/13,902 = 13,902/x
3. Step 3: Cross multiply
   10,243x = 13,902 × 13,902
4. Step 4: Simplify right side
   10,243x = 193,265,604
5. Step 5: Solve for x
   x = 193,265,604/10,243
6. Step 6: Final answer
   x = 18,868.07