Finding the Third Proportional to 17,745.75 and 19,392.75

Step by Step Solution

1. Step 1: Write the proportion equation
   17,745.75 : 19,392.75 = 19,392.75 : x
2. Step 2: Convert to fraction form
   17,745.75/19,392.75 = 19,392.75/x
3. Step 3: Cross multiply
   17,745.75x = 19,392.75 × 19,392.75
4. Step 4: Simplify right side
   17,745.75x = 376,078,752.56
5. Step 5: Solve for x
   x = 376,078,752.56/17,745.75
6. Step 6: Final answer
   x = 21,192.61