Finding the Third Proportional to 622,940 and 1,340,648

Step by Step Solution

1. Step 1: Write the proportion equation
   622,940 : 1,340,648 = 1,340,648 : x
2. Step 2: Convert to fraction form
   622,940/1,340,648 = 1,340,648/x
3. Step 3: Cross multiply
   622,940x = 1,340,648 × 1,340,648
4. Step 4: Simplify right side
   622,940x = 1,797,337,059,904
5. Step 5: Solve for x
   x = 1,797,337,059,904/622,940
6. Step 6: Final answer
   x = 2,885,249.08