Finding the Third Proportional to 297,756 and 648,960

Step by Step Solution

1. Step 1: Write the proportion equation
   297,756 : 648,960 = 648,960 : x
2. Step 2: Convert to fraction form
   297,756/648,960 = 648,960/x
3. Step 3: Cross multiply
   297,756x = 648,960 × 648,960
4. Step 4: Simplify right side
   297,756x = 421,149,081,600
5. Step 5: Solve for x
   x = 421,149,081,600/297,756
6. Step 6: Final answer
   x = 1,414,410.06