Finding the Third Proportional to 1,243.69 and 3,000.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243.69 : 3,000.38 = 3,000.38 : x
2. Step 2: Convert to fraction form
   1,243.69/3,000.38 = 3,000.38/x
3. Step 3: Cross multiply
   1,243.69x = 3,000.38 × 3,000.38
4. Step 4: Simplify right side
   1,243.69x = 9,002,250.14
5. Step 5: Solve for x
   x = 9,002,250.14/1,243.69
6. Step 6: Final answer
   x = 7,238.35