Finding the Third Proportional to 838,436 and 1,809,710

Step by Step Solution

1. Step 1: Write the proportion equation
   838,436 : 1,809,710 = 1,809,710 : x
2. Step 2: Convert to fraction form
   838,436/1,809,710 = 1,809,710/x
3. Step 3: Cross multiply
   838,436x = 1,809,710 × 1,809,710
4. Step 4: Simplify right side
   838,436x = 3,275,050,284,100
5. Step 5: Solve for x
   x = 3,275,050,284,100/838,436
6. Step 6: Final answer
   x = 3,906,142.25