Finding the Third Proportional to 1,388,331 and 2,097,288

Step by Step Solution

1. Step 1: Write the proportion equation
   1,388,331 : 2,097,288 = 2,097,288 : x
2. Step 2: Convert to fraction form
   1,388,331/2,097,288 = 2,097,288/x
3. Step 3: Cross multiply
   1,388,331x = 2,097,288 × 2,097,288
4. Step 4: Simplify right side
   1,388,331x = 4,398,616,954,944
5. Step 5: Solve for x
   x = 4,398,616,954,944/1,388,331
6. Step 6: Final answer
   x = 3,168,276.84