Finding the Third Proportional to 196,632 and 300,678

Step by Step Solution

1. Step 1: Write the proportion equation
   196,632 : 300,678 = 300,678 : x
2. Step 2: Convert to fraction form
   196,632/300,678 = 300,678/x
3. Step 3: Cross multiply
   196,632x = 300,678 × 300,678
4. Step 4: Simplify right side
   196,632x = 90,407,259,684
5. Step 5: Solve for x
   x = 90,407,259,684/196,632
6. Step 6: Final answer
   x = 459,778.98