Finding the Third Proportional to 1,345,392 and 1,998,912

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,392 : 1,998,912 = 1,998,912 : x
2. Step 2: Convert to fraction form
   1,345,392/1,998,912 = 1,998,912/x
3. Step 3: Cross multiply
   1,345,392x = 1,998,912 × 1,998,912
4. Step 4: Simplify right side
   1,345,392x = 3,995,649,183,744
5. Step 5: Solve for x
   x = 3,995,649,183,744/1,345,392
6. Step 6: Final answer
   x = 2,969,877.32