Finding the Third Proportional to 1,399,618 and 2,099,061

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,618 : 2,099,061 = 2,099,061 : x
2. Step 2: Convert to fraction form
   1,399,618/2,099,061 = 2,099,061/x
3. Step 3: Cross multiply
   1,399,618x = 2,099,061 × 2,099,061
4. Step 4: Simplify right side
   1,399,618x = 4,406,057,081,721
5. Step 5: Solve for x
   x = 4,406,057,081,721/1,399,618
6. Step 6: Final answer
   x = 3,148,042.60