Finding the Third Proportional to 19,040 and 39,404

Step by Step Solution

1. Step 1: Write the proportion equation
   19,040 : 39,404 = 39,404 : x
2. Step 2: Convert to fraction form
   19,040/39,404 = 39,404/x
3. Step 3: Cross multiply
   19,040x = 39,404 × 39,404
4. Step 4: Simplify right side
   19,040x = 1,552,675,216
5. Step 5: Solve for x
   x = 1,552,675,216/19,040
6. Step 6: Final answer
   x = 81,548.07