Finding the Third Proportional to 6,822.50 and 10,191.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,822.50 : 10,191.50 = 10,191.50 : x
2. Step 2: Convert to fraction form
   6,822.50/10,191.50 = 10,191.50/x
3. Step 3: Cross multiply
   6,822.50x = 10,191.50 × 10,191.50
4. Step 4: Simplify right side
   6,822.50x = 103,866,672.25
5. Step 5: Solve for x
   x = 103,866,672.25/6,822.50
6. Step 6: Final answer
   x = 15,224.14