Finding the Third Proportional to 1,283,902 and 1,986,990

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283,902 : 1,986,990 = 1,986,990 : x
2. Step 2: Convert to fraction form
   1,283,902/1,986,990 = 1,986,990/x
3. Step 3: Cross multiply
   1,283,902x = 1,986,990 × 1,986,990
4. Step 4: Simplify right side
   1,283,902x = 3,948,129,260,100
5. Step 5: Solve for x
   x = 3,948,129,260,100/1,283,902
6. Step 6: Final answer
   x = 3,075,101.73