Finding the Third Proportional to 8,911.69 and 19,017.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,911.69 : 19,017.28 = 19,017.28 : x
2. Step 2: Convert to fraction form
   8,911.69/19,017.28 = 19,017.28/x
3. Step 3: Cross multiply
   8,911.69x = 19,017.28 × 19,017.28
4. Step 4: Simplify right side
   8,911.69x = 361,656,986.14
5. Step 5: Solve for x
   x = 361,656,986.14/8,911.69
6. Step 6: Final answer
   x = 40,582.32