Finding the Third Proportional to 860,686 and 1,891,227

Step by Step Solution

1. Step 1: Write the proportion equation
   860,686 : 1,891,227 = 1,891,227 : x
2. Step 2: Convert to fraction form
   860,686/1,891,227 = 1,891,227/x
3. Step 3: Cross multiply
   860,686x = 1,891,227 × 1,891,227
4. Step 4: Simplify right side
   860,686x = 3,576,739,565,529
5. Step 5: Solve for x
   x = 3,576,739,565,529/860,686
6. Step 6: Final answer
   x = 4,155,684.61