Finding the Third Proportional to 6,211.69 and 9,945.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,211.69 : 9,945.28 = 9,945.28 : x
2. Step 2: Convert to fraction form
   6,211.69/9,945.28 = 9,945.28/x
3. Step 3: Cross multiply
   6,211.69x = 9,945.28 × 9,945.28
4. Step 4: Simplify right side
   6,211.69x = 98,908,619.14
5. Step 5: Solve for x
   x = 98,908,619.14/6,211.69
6. Step 6: Final answer
   x = 15,922.99