Finding the Third Proportional to 838,558 and 1,809,902

Step by Step Solution

1. Step 1: Write the proportion equation
   838,558 : 1,809,902 = 1,809,902 : x
2. Step 2: Convert to fraction form
   838,558/1,809,902 = 1,809,902/x
3. Step 3: Cross multiply
   838,558x = 1,809,902 × 1,809,902
4. Step 4: Simplify right side
   838,558x = 3,275,745,249,604
5. Step 5: Solve for x
   x = 3,275,745,249,604/838,558
6. Step 6: Final answer
   x = 3,906,402.72