Finding the Third Proportional to 297,744 and 648,936

Step by Step Solution

1. Step 1: Write the proportion equation
   297,744 : 648,936 = 648,936 : x
2. Step 2: Convert to fraction form
   297,744/648,936 = 648,936/x
3. Step 3: Cross multiply
   297,744x = 648,936 × 648,936
4. Step 4: Simplify right side
   297,744x = 421,117,932,096
5. Step 5: Solve for x
   x = 421,117,932,096/297,744
6. Step 6: Final answer
   x = 1,414,362.45