Finding the Third Proportional to 8,216.44 and 10,978.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216.44 : 10,978.03 = 10,978.03 : x
2. Step 2: Convert to fraction form
   8,216.44/10,978.03 = 10,978.03/x
3. Step 3: Cross multiply
   8,216.44x = 10,978.03 × 10,978.03
4. Step 4: Simplify right side
   8,216.44x = 120,517,170.13
5. Step 5: Solve for x
   x = 120,517,170.13/8,216.44
6. Step 6: Final answer
   x = 14,667.81