Finding the Third Proportional to 857,761 and 1,261,684

Step by Step Solution

1. Step 1: Write the proportion equation
   857,761 : 1,261,684 = 1,261,684 : x
2. Step 2: Convert to fraction form
   857,761/1,261,684 = 1,261,684/x
3. Step 3: Cross multiply
   857,761x = 1,261,684 × 1,261,684
4. Step 4: Simplify right side
   857,761x = 1,591,846,515,856
5. Step 5: Solve for x
   x = 1,591,846,515,856/857,761
6. Step 6: Final answer
   x = 1,855,815.92