Finding the Third Proportional to 6,389.50 and 9,786.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,389.50 : 9,786.50 = 9,786.50 : x
2. Step 2: Convert to fraction form
   6,389.50/9,786.50 = 9,786.50/x
3. Step 3: Cross multiply
   6,389.50x = 9,786.50 × 9,786.50
4. Step 4: Simplify right side
   6,389.50x = 95,775,582.25
5. Step 5: Solve for x
   x = 95,775,582.25/6,389.50
6. Step 6: Final answer
   x = 14,989.53