Finding the Third Proportional to 19,078 and 28,616

Step by Step Solution

1. Step 1: Write the proportion equation
   19,078 : 28,616 = 28,616 : x
2. Step 2: Convert to fraction form
   19,078/28,616 = 28,616/x
3. Step 3: Cross multiply
   19,078x = 28,616 × 28,616
4. Step 4: Simplify right side
   19,078x = 818,875,456
5. Step 5: Solve for x
   x = 818,875,456/19,078
6. Step 6: Final answer
   x = 42,922.50