Finding the Third Proportional to 1,399,640 and 2,099,096

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,640 : 2,099,096 = 2,099,096 : x
2. Step 2: Convert to fraction form
   1,399,640/2,099,096 = 2,099,096/x
3. Step 3: Cross multiply
   1,399,640x = 2,099,096 × 2,099,096
4. Step 4: Simplify right side
   1,399,640x = 4,406,204,017,216
5. Step 5: Solve for x
   x = 4,406,204,017,216/1,399,640
6. Step 6: Final answer
   x = 3,148,098.09