Finding the Third Proportional to 1,397,341 and 1,977,636

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,341 : 1,977,636 = 1,977,636 : x
2. Step 2: Convert to fraction form
   1,397,341/1,977,636 = 1,977,636/x
3. Step 3: Cross multiply
   1,397,341x = 1,977,636 × 1,977,636
4. Step 4: Simplify right side
   1,397,341x = 3,911,044,148,496
5. Step 5: Solve for x
   x = 3,911,044,148,496/1,397,341
6. Step 6: Final answer
   x = 2,798,918.91