Finding the Third Proportional to 3,889.69 and 5,787.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,889.69 : 5,787.28 = 5,787.28 : x
2. Step 2: Convert to fraction form
   3,889.69/5,787.28 = 5,787.28/x
3. Step 3: Cross multiply
   3,889.69x = 5,787.28 × 5,787.28
4. Step 4: Simplify right side
   3,889.69x = 33,492,624.27
5. Step 5: Solve for x
   x = 33,492,624.27/3,889.69
6. Step 6: Final answer
   x = 8,610.62