Finding the Third Proportional to 1,309,871 and 1,969,671

Step by Step Solution

1. Step 1: Write the proportion equation
   1,309,871 : 1,969,671 = 1,969,671 : x
2. Step 2: Convert to fraction form
   1,309,871/1,969,671 = 1,969,671/x
3. Step 3: Cross multiply
   1,309,871x = 1,969,671 × 1,969,671
4. Step 4: Simplify right side
   1,309,871x = 3,879,603,848,241
5. Step 5: Solve for x
   x = 3,879,603,848,241/1,309,871
6. Step 6: Final answer
   x = 2,961,821.32