Finding the Third Proportional to 6,215.06 and 8,859.38

Step by Step Solution

1. Step 1: Write the proportion equation
   6,215.06 : 8,859.38 = 8,859.38 : x
2. Step 2: Convert to fraction form
   6,215.06/8,859.38 = 8,859.38/x
3. Step 3: Cross multiply
   6,215.06x = 8,859.38 × 8,859.38
4. Step 4: Simplify right side
   6,215.06x = 78,488,525.39
5. Step 5: Solve for x
   x = 78,488,525.39/6,215.06
6. Step 6: Final answer
   x = 12,628.76