Finding the Third Proportional to 6,919.50 and 10,811.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,919.50 : 10,811.25 = 10,811.25 : x
2. Step 2: Convert to fraction form
   6,919.50/10,811.25 = 10,811.25/x
3. Step 3: Cross multiply
   6,919.50x = 10,811.25 × 10,811.25
4. Step 4: Simplify right side
   6,919.50x = 116,883,126.56
5. Step 5: Solve for x
   x = 116,883,126.56/6,919.50
6. Step 6: Final answer
   x = 16,891.85