Finding the Third Proportional to 1,283,309 and 1,998,620

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283,309 : 1,998,620 = 1,998,620 : x
2. Step 2: Convert to fraction form
   1,283,309/1,998,620 = 1,998,620/x
3. Step 3: Cross multiply
   1,283,309x = 1,998,620 × 1,998,620
4. Step 4: Simplify right side
   1,283,309x = 3,994,481,904,400
5. Step 5: Solve for x
   x = 3,994,481,904,400/1,283,309
6. Step 6: Final answer
   x = 3,112,642.32