Finding the Third Proportional to 1,399,694 and 2,099,163

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,694 : 2,099,163 = 2,099,163 : x
2. Step 2: Convert to fraction form
   1,399,694/2,099,163 = 2,099,163/x
3. Step 3: Cross multiply
   1,399,694x = 2,099,163 × 2,099,163
4. Step 4: Simplify right side
   1,399,694x = 4,406,485,300,569
5. Step 5: Solve for x
   x = 4,406,485,300,569/1,399,694
6. Step 6: Final answer
   x = 3,148,177.60