Finding the Third Proportional to 1,998,786 and 3,196,899

Step by Step Solution

1. Step 1: Write the proportion equation
   1,998,786 : 3,196,899 = 3,196,899 : x
2. Step 2: Convert to fraction form
   1,998,786/3,196,899 = 3,196,899/x
3. Step 3: Cross multiply
   1,998,786x = 3,196,899 × 3,196,899
4. Step 4: Simplify right side
   1,998,786x = 10,220,163,216,201
5. Step 5: Solve for x
   x = 10,220,163,216,201/1,998,786
6. Step 6: Final answer
   x = 5,113,185.31