Finding the Third Proportional to 297,756 and 648,012

Step by Step Solution

1. Step 1: Write the proportion equation
   297,756 : 648,012 = 648,012 : x
2. Step 2: Convert to fraction form
   297,756/648,012 = 648,012/x
3. Step 3: Cross multiply
   297,756x = 648,012 × 648,012
4. Step 4: Simplify right side
   297,756x = 419,919,552,144
5. Step 5: Solve for x
   x = 419,919,552,144/297,756
6. Step 6: Final answer
   x = 1,410,280.74