Finding the Third Proportional to 1,421,298 and 2,899,689

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421,298 : 2,899,689 = 2,899,689 : x
2. Step 2: Convert to fraction form
   1,421,298/2,899,689 = 2,899,689/x
3. Step 3: Cross multiply
   1,421,298x = 2,899,689 × 2,899,689
4. Step 4: Simplify right side
   1,421,298x = 8,408,196,296,721
5. Step 5: Solve for x
   x = 8,408,196,296,721/1,421,298
6. Step 6: Final answer
   x = 5,915,857.40