Finding the Third Proportional to 1,338,815 and 2,942,122

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338,815 : 2,942,122 = 2,942,122 : x
2. Step 2: Convert to fraction form
   1,338,815/2,942,122 = 2,942,122/x
3. Step 3: Cross multiply
   1,338,815x = 2,942,122 × 2,942,122
4. Step 4: Simplify right side
   1,338,815x = 8,656,081,862,884
5. Step 5: Solve for x
   x = 8,656,081,862,884/1,338,815
6. Step 6: Final answer
   x = 6,465,480.19