Finding the Third Proportional to 301,318 and 648,762

Step by Step Solution

1. Step 1: Write the proportion equation
   301,318 : 648,762 = 648,762 : x
2. Step 2: Convert to fraction form
   301,318/648,762 = 648,762/x
3. Step 3: Cross multiply
   301,318x = 648,762 × 648,762
4. Step 4: Simplify right side
   301,318x = 420,892,132,644
5. Step 5: Solve for x
   x = 420,892,132,644/301,318
6. Step 6: Final answer
   x = 1,396,837.00