Finding the Third Proportional to 300,986 and 626,884

Step by Step Solution

1. Step 1: Write the proportion equation
   300,986 : 626,884 = 626,884 : x
2. Step 2: Convert to fraction form
   300,986/626,884 = 626,884/x
3. Step 3: Cross multiply
   300,986x = 626,884 × 626,884
4. Step 4: Simplify right side
   300,986x = 392,983,549,456
5. Step 5: Solve for x
   x = 392,983,549,456/300,986
6. Step 6: Final answer
   x = 1,305,653.92