Finding the Third Proportional to 12,906.25 and 18,981.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,906.25 : 18,981.38 = 18,981.38 : x
2. Step 2: Convert to fraction form
   12,906.25/18,981.38 = 18,981.38/x
3. Step 3: Cross multiply
   12,906.25x = 18,981.38 × 18,981.38
4. Step 4: Simplify right side
   12,906.25x = 360,292,596.89
5. Step 5: Solve for x
   x = 360,292,596.89/12,906.25
6. Step 6: Final answer
   x = 27,916.13