Finding the Third Proportional to 1,345,396 and 1,998,918

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,396 : 1,998,918 = 1,998,918 : x
2. Step 2: Convert to fraction form
   1,345,396/1,998,918 = 1,998,918/x
3. Step 3: Cross multiply
   1,345,396x = 1,998,918 × 1,998,918
4. Step 4: Simplify right side
   1,345,396x = 3,995,673,170,724
5. Step 5: Solve for x
   x = 3,995,673,170,724/1,345,396
6. Step 6: Final answer
   x = 2,969,886.32