Finding the Third Proportional to 12,463.88 and 18,979.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,463.88 : 18,979.31 = 18,979.31 : x
2. Step 2: Convert to fraction form
   12,463.88/18,979.31 = 18,979.31/x
3. Step 3: Cross multiply
   12,463.88x = 18,979.31 × 18,979.31
4. Step 4: Simplify right side
   12,463.88x = 360,214,302.97
5. Step 5: Solve for x
   x = 360,214,302.97/12,463.88
6. Step 6: Final answer
   x = 28,900.67