Finding the Third Proportional to 3,393.56 and 7,689.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,393.56 : 7,689.94 = 7,689.94 : x
2. Step 2: Convert to fraction form
   3,393.56/7,689.94 = 7,689.94/x
3. Step 3: Cross multiply
   3,393.56x = 7,689.94 × 7,689.94
4. Step 4: Simplify right side
   3,393.56x = 59,135,138.75
5. Step 5: Solve for x
   x = 59,135,138.75/3,393.56
6. Step 6: Final answer
   x = 17,425.68