Finding the Third Proportional to 3,393.56 and 7,997.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,393.56 : 7,997.91 = 7,997.91 : x
2. Step 2: Convert to fraction form
   3,393.56/7,997.91 = 7,997.91/x
3. Step 3: Cross multiply
   3,393.56x = 7,997.91 × 7,997.91
4. Step 4: Simplify right side
   3,393.56x = 63,966,504.38
5. Step 5: Solve for x
   x = 63,966,504.38/3,393.56
6. Step 6: Final answer
   x = 18,849.37