Finding the Third Proportional to 204,144 and 300,168

Step by Step Solution

1. Step 1: Write the proportion equation
   204,144 : 300,168 = 300,168 : x
2. Step 2: Convert to fraction form
   204,144/300,168 = 300,168/x
3. Step 3: Cross multiply
   204,144x = 300,168 × 300,168
4. Step 4: Simplify right side
   204,144x = 90,100,828,224
5. Step 5: Solve for x
   x = 90,100,828,224/204,144
6. Step 6: Final answer
   x = 441,359.18