Finding the Third Proportional to 838,949 and 1,817,866

Step by Step Solution

1. Step 1: Write the proportion equation
   838,949 : 1,817,866 = 1,817,866 : x
2. Step 2: Convert to fraction form
   838,949/1,817,866 = 1,817,866/x
3. Step 3: Cross multiply
   838,949x = 1,817,866 × 1,817,866
4. Step 4: Simplify right side
   838,949x = 3,304,636,793,956
5. Step 5: Solve for x
   x = 3,304,636,793,956/838,949
6. Step 6: Final answer
   x = 3,939,019.89