Finding the Third Proportional to 842,800 and 1,857,384

Step by Step Solution

1. Step 1: Write the proportion equation
   842,800 : 1,857,384 = 1,857,384 : x
2. Step 2: Convert to fraction form
   842,800/1,857,384 = 1,857,384/x
3. Step 3: Cross multiply
   842,800x = 1,857,384 × 1,857,384
4. Step 4: Simplify right side
   842,800x = 3,449,875,323,456
5. Step 5: Solve for x
   x = 3,449,875,323,456/842,800
6. Step 6: Final answer
   x = 4,093,349.93