Finding the Third Proportional to 1,345,394 and 1,998,915

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,394 : 1,998,915 = 1,998,915 : x
2. Step 2: Convert to fraction form
   1,345,394/1,998,915 = 1,998,915/x
3. Step 3: Cross multiply
   1,345,394x = 1,998,915 × 1,998,915
4. Step 4: Simplify right side
   1,345,394x = 3,995,661,177,225
5. Step 5: Solve for x
   x = 3,995,661,177,225/1,345,394
6. Step 6: Final answer
   x = 2,969,881.82