Finding the Third Proportional to 308,145 and 673,008

Step by Step Solution

1. Step 1: Write the proportion equation
   308,145 : 673,008 = 673,008 : x
2. Step 2: Convert to fraction form
   308,145/673,008 = 673,008/x
3. Step 3: Cross multiply
   308,145x = 673,008 × 673,008
4. Step 4: Simplify right side
   308,145x = 452,939,768,064
5. Step 5: Solve for x
   x = 452,939,768,064/308,145
6. Step 6: Final answer
   x = 1,469,891.67