Finding the Third Proportional to 3,618 and 7,114.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,618 : 7,114.50 = 7,114.50 : x
2. Step 2: Convert to fraction form
   3,618/7,114.50 = 7,114.50/x
3. Step 3: Cross multiply
   3,618x = 7,114.50 × 7,114.50
4. Step 4: Simplify right side
   3,618x = 50,616,110.25
5. Step 5: Solve for x
   x = 50,616,110.25/3,618
6. Step 6: Final answer
   x = 13,990.08