Finding the Third Proportional to 1,083,786 and 1,687,710

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083,786 : 1,687,710 = 1,687,710 : x
2. Step 2: Convert to fraction form
   1,083,786/1,687,710 = 1,687,710/x
3. Step 3: Cross multiply
   1,083,786x = 1,687,710 × 1,687,710
4. Step 4: Simplify right side
   1,083,786x = 2,848,365,044,100
5. Step 5: Solve for x
   x = 2,848,365,044,100/1,083,786
6. Step 6: Final answer
   x = 2,628,161.87