Finding the Third Proportional to 12,436.88 and 18,837.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,436.88 : 18,837.56 = 18,837.56 : x
2. Step 2: Convert to fraction form
   12,436.88/18,837.56 = 18,837.56/x
3. Step 3: Cross multiply
   12,436.88x = 18,837.56 × 18,837.56
4. Step 4: Simplify right side
   12,436.88x = 354,853,760.94
5. Step 5: Solve for x
   x = 354,853,760.94/12,436.88
6. Step 6: Final answer
   x = 28,532.39