Finding the Third Proportional to 857,436 and 1,261,374

Step by Step Solution

1. Step 1: Write the proportion equation
   857,436 : 1,261,374 = 1,261,374 : x
2. Step 2: Convert to fraction form
   857,436/1,261,374 = 1,261,374/x
3. Step 3: Cross multiply
   857,436x = 1,261,374 × 1,261,374
4. Step 4: Simplify right side
   857,436x = 1,591,064,367,876
5. Step 5: Solve for x
   x = 1,591,064,367,876/857,436
6. Step 6: Final answer
   x = 1,855,607.14