Finding the Third Proportional to 297,873 and 648,162

Step by Step Solution

1. Step 1: Write the proportion equation
   297,873 : 648,162 = 648,162 : x
2. Step 2: Convert to fraction form
   297,873/648,162 = 648,162/x
3. Step 3: Cross multiply
   297,873x = 648,162 × 648,162
4. Step 4: Simplify right side
   297,873x = 420,113,978,244
5. Step 5: Solve for x
   x = 420,113,978,244/297,873
6. Step 6: Final answer
   x = 1,410,379.52