Finding the Third Proportional to 3,299.63 and 7,149.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,299.63 : 7,149.38 = 7,149.38 : x
2. Step 2: Convert to fraction form
   3,299.63/7,149.38 = 7,149.38/x
3. Step 3: Cross multiply
   3,299.63x = 7,149.38 × 7,149.38
4. Step 4: Simplify right side
   3,299.63x = 51,113,562.89
5. Step 5: Solve for x
   x = 51,113,562.89/3,299.63
6. Step 6: Final answer
   x = 15,490.72