Finding the Third Proportional to 857,108 and 1,268,166

Step by Step Solution

1. Step 1: Write the proportion equation
   857,108 : 1,268,166 = 1,268,166 : x
2. Step 2: Convert to fraction form
   857,108/1,268,166 = 1,268,166/x
3. Step 3: Cross multiply
   857,108x = 1,268,166 × 1,268,166
4. Step 4: Simplify right side
   857,108x = 1,608,245,003,556
5. Step 5: Solve for x
   x = 1,608,245,003,556/857,108
6. Step 6: Final answer
   x = 1,876,362.14