Finding the Third Proportional to 3,574.69 and 7,680.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,574.69 : 7,680.94 = 7,680.94 : x
2. Step 2: Convert to fraction form
   3,574.69/7,680.94 = 7,680.94/x
3. Step 3: Cross multiply
   3,574.69x = 7,680.94 × 7,680.94
4. Step 4: Simplify right side
   3,574.69x = 58,996,800.88
5. Step 5: Solve for x
   x = 58,996,800.88/3,574.69
6. Step 6: Final answer
   x = 16,504.04