Finding the Third Proportional to 196,636 and 300,684

Step by Step Solution

1. Step 1: Write the proportion equation
   196,636 : 300,684 = 300,684 : x
2. Step 2: Convert to fraction form
   196,636/300,684 = 300,684/x
3. Step 3: Cross multiply
   196,636x = 300,684 × 300,684
4. Step 4: Simplify right side
   196,636x = 90,410,867,856
5. Step 5: Solve for x
   x = 90,410,867,856/196,636
6. Step 6: Final answer
   x = 459,787.97