Finding the Third Proportional to 10,818 and 18,147

Step by Step Solution

1. Step 1: Write the proportion equation
   10,818 : 18,147 = 18,147 : x
2. Step 2: Convert to fraction form
   10,818/18,147 = 18,147/x
3. Step 3: Cross multiply
   10,818x = 18,147 × 18,147
4. Step 4: Simplify right side
   10,818x = 329,313,609
5. Step 5: Solve for x
   x = 329,313,609/10,818
6. Step 6: Final answer
   x = 30,441.27