Finding the Third Proportional to 300,743 and 626,284

Step by Step Solution

1. Step 1: Write the proportion equation
   300,743 : 626,284 = 626,284 : x
2. Step 2: Convert to fraction form
   300,743/626,284 = 626,284/x
3. Step 3: Cross multiply
   300,743x = 626,284 × 626,284
4. Step 4: Simplify right side
   300,743x = 392,231,648,656
5. Step 5: Solve for x
   x = 392,231,648,656/300,743
6. Step 6: Final answer
   x = 1,304,208.74