Finding the Third Proportional to 969,840 and 1,999,404

Step by Step Solution

1. Step 1: Write the proportion equation
   969,840 : 1,999,404 = 1,999,404 : x
2. Step 2: Convert to fraction form
   969,840/1,999,404 = 1,999,404/x
3. Step 3: Cross multiply
   969,840x = 1,999,404 × 1,999,404
4. Step 4: Simplify right side
   969,840x = 3,997,616,355,216
5. Step 5: Solve for x
   x = 3,997,616,355,216/969,840
6. Step 6: Final answer
   x = 4,121,933.88