Finding the Third Proportional to 6,645 and 12,255

Step by Step Solution

1. Step 1: Write the proportion equation
   6,645 : 12,255 = 12,255 : x
2. Step 2: Convert to fraction form
   6,645/12,255 = 12,255/x
3. Step 3: Cross multiply
   6,645x = 12,255 × 12,255
4. Step 4: Simplify right side
   6,645x = 150,185,025
5. Step 5: Solve for x
   x = 150,185,025/6,645
6. Step 6: Final answer
   x = 22,601.21