Finding the Third Proportional to 11,709.56 and 25,378.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,709.56 : 25,378.31 = 25,378.31 : x
2. Step 2: Convert to fraction form
   11,709.56/25,378.31 = 25,378.31/x
3. Step 3: Cross multiply
   11,709.56x = 25,378.31 × 25,378.31
4. Step 4: Simplify right side
   11,709.56x = 644,058,745.35
5. Step 5: Solve for x
   x = 644,058,745.35/11,709.56
6. Step 6: Final answer
   x = 55,002.80