Finding the Third Proportional to 857,115 and 1,843,222

Step by Step Solution

1. Step 1: Write the proportion equation
   857,115 : 1,843,222 = 1,843,222 : x
2. Step 2: Convert to fraction form
   857,115/1,843,222 = 1,843,222/x
3. Step 3: Cross multiply
   857,115x = 1,843,222 × 1,843,222
4. Step 4: Simplify right side
   857,115x = 3,397,467,341,284
5. Step 5: Solve for x
   x = 3,397,467,341,284/857,115
6. Step 6: Final answer
   x = 3,963,840.72