Finding the Third Proportional to 19,280 and 28,160

Step by Step Solution

1. Step 1: Write the proportion equation
   19,280 : 28,160 = 28,160 : x
2. Step 2: Convert to fraction form
   19,280/28,160 = 28,160/x
3. Step 3: Cross multiply
   19,280x = 28,160 × 28,160
4. Step 4: Simplify right side
   19,280x = 792,985,600
5. Step 5: Solve for x
   x = 792,985,600/19,280
6. Step 6: Final answer
   x = 41,129.96