Finding the Third Proportional to 300,745 and 626,288

Step by Step Solution

1. Step 1: Write the proportion equation
   300,745 : 626,288 = 626,288 : x
2. Step 2: Convert to fraction form
   300,745/626,288 = 626,288/x
3. Step 3: Cross multiply
   300,745x = 626,288 × 626,288
4. Step 4: Simplify right side
   300,745x = 392,236,658,944
5. Step 5: Solve for x
   x = 392,236,658,944/300,745
6. Step 6: Final answer
   x = 1,304,216.72