Finding the Third Proportional to 388,210 and 848,384

Step by Step Solution

1. Step 1: Write the proportion equation
   388,210 : 848,384 = 848,384 : x
2. Step 2: Convert to fraction form
   388,210/848,384 = 848,384/x
3. Step 3: Cross multiply
   388,210x = 848,384 × 848,384
4. Step 4: Simplify right side
   388,210x = 719,755,411,456
5. Step 5: Solve for x
   x = 719,755,411,456/388,210
6. Step 6: Final answer
   x = 1,854,036.25