Finding the Third Proportional to 19,280 and 28,760

Step by Step Solution

1. Step 1: Write the proportion equation
   19,280 : 28,760 = 28,760 : x
2. Step 2: Convert to fraction form
   19,280/28,760 = 28,760/x
3. Step 3: Cross multiply
   19,280x = 28,760 × 28,760
4. Step 4: Simplify right side
   19,280x = 827,137,600
5. Step 5: Solve for x
   x = 827,137,600/19,280
6. Step 6: Final answer
   x = 42,901.33