Finding the Third Proportional to 638,338 and 1,383,046

Step by Step Solution

1. Step 1: Write the proportion equation
   638,338 : 1,383,046 = 1,383,046 : x
2. Step 2: Convert to fraction form
   638,338/1,383,046 = 1,383,046/x
3. Step 3: Cross multiply
   638,338x = 1,383,046 × 1,383,046
4. Step 4: Simplify right side
   638,338x = 1,912,816,238,116
5. Step 5: Solve for x
   x = 1,912,816,238,116/638,338
6. Step 6: Final answer
   x = 2,996,557.06