Finding the Third Proportional to 789,987 and 1,699,860

Step by Step Solution

1. Step 1: Write the proportion equation
   789,987 : 1,699,860 = 1,699,860 : x
2. Step 2: Convert to fraction form
   789,987/1,699,860 = 1,699,860/x
3. Step 3: Cross multiply
   789,987x = 1,699,860 × 1,699,860
4. Step 4: Simplify right side
   789,987x = 2,889,524,019,600
5. Step 5: Solve for x
   x = 2,889,524,019,600/789,987
6. Step 6: Final answer
   x = 3,657,685.53