Finding the Third Proportional to 306,973 and 629,160.50

Step by Step Solution

1. Step 1: Write the proportion equation
   306,973 : 629,160.50 = 629,160.50 : x
2. Step 2: Convert to fraction form
   306,973/629,160.50 = 629,160.50/x
3. Step 3: Cross multiply
   306,973x = 629,160.50 × 629,160.50
4. Step 4: Simplify right side
   306,973x = 395,842,934,760.25
5. Step 5: Solve for x
   x = 395,842,934,760.25/306,973
6. Step 6: Final answer
   x = 1,289,504.08