Finding the Third Proportional to 7,216 and 10,618

Step by Step Solution

1. Step 1: Write the proportion equation
   7,216 : 10,618 = 10,618 : x
2. Step 2: Convert to fraction form
   7,216/10,618 = 10,618/x
3. Step 3: Cross multiply
   7,216x = 10,618 × 10,618
4. Step 4: Simplify right side
   7,216x = 112,741,924
5. Step 5: Solve for x
   x = 112,741,924/7,216
6. Step 6: Final answer
   x = 15,623.88