Finding the Third Proportional to 12,448.69 and 19,131.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,448.69 : 19,131.19 = 19,131.19 : x
2. Step 2: Convert to fraction form
   12,448.69/19,131.19 = 19,131.19/x
3. Step 3: Cross multiply
   12,448.69x = 19,131.19 × 19,131.19
4. Step 4: Simplify right side
   12,448.69x = 366,002,335.16
5. Step 5: Solve for x
   x = 366,002,335.16/12,448.69
6. Step 6: Final answer
   x = 29,400.88