Finding the Third Proportional to 12,644.25 and 19,007.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,644.25 : 19,007.25 = 19,007.25 : x
2. Step 2: Convert to fraction form
   12,644.25/19,007.25 = 19,007.25/x
3. Step 3: Cross multiply
   12,644.25x = 19,007.25 × 19,007.25
4. Step 4: Simplify right side
   12,644.25x = 361,275,552.56
5. Step 5: Solve for x
   x = 361,275,552.56/12,644.25
6. Step 6: Final answer
   x = 28,572.32