Finding the Third Proportional to 6,399 and 7,796.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,399 : 7,796.25 = 7,796.25 : x
2. Step 2: Convert to fraction form
   6,399/7,796.25 = 7,796.25/x
3. Step 3: Cross multiply
   6,399x = 7,796.25 × 7,796.25
4. Step 4: Simplify right side
   6,399x = 60,781,514.06
5. Step 5: Solve for x
   x = 60,781,514.06/6,399
6. Step 6: Final answer
   x = 9,498.60