Finding the Third Proportional to 19,320 and 28,734

Step by Step Solution

1. Step 1: Write the proportion equation
   19,320 : 28,734 = 28,734 : x
2. Step 2: Convert to fraction form
   19,320/28,734 = 28,734/x
3. Step 3: Cross multiply
   19,320x = 28,734 × 28,734
4. Step 4: Simplify right side
   19,320x = 825,642,756
5. Step 5: Solve for x
   x = 825,642,756/19,320
6. Step 6: Final answer
   x = 42,735.13