Finding the Third Proportional to 388,662 and 836,940

Step by Step Solution

1. Step 1: Write the proportion equation
   388,662 : 836,940 = 836,940 : x
2. Step 2: Convert to fraction form
   388,662/836,940 = 836,940/x
3. Step 3: Cross multiply
   388,662x = 836,940 × 836,940
4. Step 4: Simplify right side
   388,662x = 700,468,563,600
5. Step 5: Solve for x
   x = 700,468,563,600/388,662
6. Step 6: Final answer
   x = 1,802,256.37