Finding the Third Proportional to 300,244 and 647,036

Step by Step Solution

1. Step 1: Write the proportion equation
   300,244 : 647,036 = 647,036 : x
2. Step 2: Convert to fraction form
   300,244/647,036 = 647,036/x
3. Step 3: Cross multiply
   300,244x = 647,036 × 647,036
4. Step 4: Simplify right side
   300,244x = 418,655,585,296
5. Step 5: Solve for x
   x = 418,655,585,296/300,244
6. Step 6: Final answer
   x = 1,394,384.52