Finding the Third Proportional to 388,626 and 836,300

Step by Step Solution

1. Step 1: Write the proportion equation
   388,626 : 836,300 = 836,300 : x
2. Step 2: Convert to fraction form
   388,626/836,300 = 836,300/x
3. Step 3: Cross multiply
   388,626x = 836,300 × 836,300
4. Step 4: Simplify right side
   388,626x = 699,397,690,000
5. Step 5: Solve for x
   x = 699,397,690,000/388,626
6. Step 6: Final answer
   x = 1,799,667.78