Finding the Third Proportional to 3,580.03 and 7,689.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,580.03 : 7,689.09 = 7,689.09 : x
2. Step 2: Convert to fraction form
   3,580.03/7,689.09 = 7,689.09/x
3. Step 3: Cross multiply
   3,580.03x = 7,689.09 × 7,689.09
4. Step 4: Simplify right side
   3,580.03x = 59,122,162.70
5. Step 5: Solve for x
   x = 59,122,162.70/3,580.03
6. Step 6: Final answer
   x = 16,514.43