Finding the Third Proportional to 10,104 and 20,618

Step by Step Solution

1. Step 1: Write the proportion equation
   10,104 : 20,618 = 20,618 : x
2. Step 2: Convert to fraction form
   10,104/20,618 = 20,618/x
3. Step 3: Cross multiply
   10,104x = 20,618 × 20,618
4. Step 4: Simplify right side
   10,104x = 425,101,924
5. Step 5: Solve for x
   x = 425,101,924/10,104
6. Step 6: Final answer
   x = 42,072.64