Finding the Third Proportional to 308,144 and 673,006

Step by Step Solution

1. Step 1: Write the proportion equation
   308,144 : 673,006 = 673,006 : x
2. Step 2: Convert to fraction form
   308,144/673,006 = 673,006/x
3. Step 3: Cross multiply
   308,144x = 673,006 × 673,006
4. Step 4: Simplify right side
   308,144x = 452,937,076,036
5. Step 5: Solve for x
   x = 452,937,076,036/308,144
6. Step 6: Final answer
   x = 1,469,887.70