Finding the Third Proportional to 2,618 and 5,354

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618 : 5,354 = 5,354 : x
2. Step 2: Convert to fraction form
   2,618/5,354 = 5,354/x
3. Step 3: Cross multiply
   2,618x = 5,354 × 5,354
4. Step 4: Simplify right side
   2,618x = 28,665,316
5. Step 5: Solve for x
   x = 28,665,316/2,618
6. Step 6: Final answer
   x = 10,949.32