Finding the Third Proportional to 1,283,940 and 1,987,008

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283,940 : 1,987,008 = 1,987,008 : x
2. Step 2: Convert to fraction form
   1,283,940/1,987,008 = 1,987,008/x
3. Step 3: Cross multiply
   1,283,940x = 1,987,008 × 1,987,008
4. Step 4: Simplify right side
   1,283,940x = 3,948,200,792,064
5. Step 5: Solve for x
   x = 3,948,200,792,064/1,283,940
6. Step 6: Final answer
   x = 3,075,066.43