Finding the Third Proportional to 1,635,986 and 3,499,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635,986 : 3,499,420 = 3,499,420 : x
2. Step 2: Convert to fraction form
   1,635,986/3,499,420 = 3,499,420/x
3. Step 3: Cross multiply
   1,635,986x = 3,499,420 × 3,499,420
4. Step 4: Simplify right side
   1,635,986x = 12,245,940,336,400
5. Step 5: Solve for x
   x = 12,245,940,336,400/1,635,986
6. Step 6: Final answer
   x = 7,485,357.66