Finding the Third Proportional to 19,128 and 25,530

Step by Step Solution

1. Step 1: Write the proportion equation
   19,128 : 25,530 = 25,530 : x
2. Step 2: Convert to fraction form
   19,128/25,530 = 25,530/x
3. Step 3: Cross multiply
   19,128x = 25,530 × 25,530
4. Step 4: Simplify right side
   19,128x = 651,780,900
5. Step 5: Solve for x
   x = 651,780,900/19,128
6. Step 6: Final answer
   x = 34,074.70