Finding the Third Proportional to 196,461 and 300,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,461 : 300,328.50 = 300,328.50 : x
2. Step 2: Convert to fraction form
   196,461/300,328.50 = 300,328.50/x
3. Step 3: Cross multiply
   196,461x = 300,328.50 × 300,328.50
4. Step 4: Simplify right side
   196,461x = 90,197,207,912.25
5. Step 5: Solve for x
   x = 90,197,207,912.25/196,461
6. Step 6: Final answer
   x = 459,109.99