Finding the Third Proportional to 8,078 and 10,911.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,078 : 10,911.50 = 10,911.50 : x
2. Step 2: Convert to fraction form
   8,078/10,911.50 = 10,911.50/x
3. Step 3: Cross multiply
   8,078x = 10,911.50 × 10,911.50
4. Step 4: Simplify right side
   8,078x = 119,060,832.25
5. Step 5: Solve for x
   x = 119,060,832.25/8,078
6. Step 6: Final answer
   x = 14,738.90