Finding the Third Proportional to 8,508.38 and 12,477.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,508.38 : 12,477.38 = 12,477.38 : x
2. Step 2: Convert to fraction form
   8,508.38/12,477.38 = 12,477.38/x
3. Step 3: Cross multiply
   8,508.38x = 12,477.38 × 12,477.38
4. Step 4: Simplify right side
   8,508.38x = 155,684,886.89
5. Step 5: Solve for x
   x = 155,684,886.89/8,508.38
6. Step 6: Final answer
   x = 18,297.84