Finding the Third Proportional to 838,434 and 1,809,708

Step by Step Solution

1. Step 1: Write the proportion equation
   838,434 : 1,809,708 = 1,809,708 : x
2. Step 2: Convert to fraction form
   838,434/1,809,708 = 1,809,708/x
3. Step 3: Cross multiply
   838,434x = 1,809,708 × 1,809,708
4. Step 4: Simplify right side
   838,434x = 3,275,043,045,264
5. Step 5: Solve for x
   x = 3,275,043,045,264/838,434
6. Step 6: Final answer
   x = 3,906,142.93