Finding the Third Proportional to 10,618 and 15,855

Step by Step Solution

1. Step 1: Write the proportion equation
   10,618 : 15,855 = 15,855 : x
2. Step 2: Convert to fraction form
   10,618/15,855 = 15,855/x
3. Step 3: Cross multiply
   10,618x = 15,855 × 15,855
4. Step 4: Simplify right side
   10,618x = 251,381,025
5. Step 5: Solve for x
   x = 251,381,025/10,618
6. Step 6: Final answer
   x = 23,674.99