Finding the Third Proportional to 8,535.38 and 12,605.63

Step by Step Solution

1. Step 1: Write the proportion equation
   8,535.38 : 12,605.63 = 12,605.63 : x
2. Step 2: Convert to fraction form
   8,535.38/12,605.63 = 12,605.63/x
3. Step 3: Cross multiply
   8,535.38x = 12,605.63 × 12,605.63
4. Step 4: Simplify right side
   8,535.38x = 158,901,781.64
5. Step 5: Solve for x
   x = 158,901,781.64/8,535.38
6. Step 6: Final answer
   x = 18,616.85