Finding the Third Proportional to 128,736 and 188,496

Step by Step Solution

1. Step 1: Write the proportion equation
   128,736 : 188,496 = 188,496 : x
2. Step 2: Convert to fraction form
   128,736/188,496 = 188,496/x
3. Step 3: Cross multiply
   128,736x = 188,496 × 188,496
4. Step 4: Simplify right side
   128,736x = 35,530,742,016
5. Step 5: Solve for x
   x = 35,530,742,016/128,736
6. Step 6: Final answer
   x = 275,996.94