Finding the Third Proportional to 8,427.38 and 12,336.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,427.38 : 12,336.47 = 12,336.47 : x
2. Step 2: Convert to fraction form
   8,427.38/12,336.47 = 12,336.47/x
3. Step 3: Cross multiply
   8,427.38x = 12,336.47 × 12,336.47
4. Step 4: Simplify right side
   8,427.38x = 152,188,461.22
5. Step 5: Solve for x
   x = 152,188,461.22/8,427.38
6. Step 6: Final answer
   x = 18,058.82