Finding the Third Proportional to 297,756 and 647,995.50

Step by Step Solution

1. Step 1: Write the proportion equation
   297,756 : 647,995.50 = 647,995.50 : x
2. Step 2: Convert to fraction form
   297,756/647,995.50 = 647,995.50/x
3. Step 3: Cross multiply
   297,756x = 647,995.50 × 647,995.50
4. Step 4: Simplify right side
   297,756x = 419,898,168,020.25
5. Step 5: Solve for x
   x = 419,898,168,020.25/297,756
6. Step 6: Final answer
   x = 1,410,208.92