Finding the Third Proportional to 19,128 and 42,016

Step by Step Solution

1. Step 1: Write the proportion equation
   19,128 : 42,016 = 42,016 : x
2. Step 2: Convert to fraction form
   19,128/42,016 = 42,016/x
3. Step 3: Cross multiply
   19,128x = 42,016 × 42,016
4. Step 4: Simplify right side
   19,128x = 1,765,344,256
5. Step 5: Solve for x
   x = 1,765,344,256/19,128
6. Step 6: Final answer
   x = 92,291.10