Finding the Third Proportional to 838,490 and 1,809,749

Step by Step Solution

1. Step 1: Write the proportion equation
   838,490 : 1,809,749 = 1,809,749 : x
2. Step 2: Convert to fraction form
   838,490/1,809,749 = 1,809,749/x
3. Step 3: Cross multiply
   838,490x = 1,809,749 × 1,809,749
4. Step 4: Simplify right side
   838,490x = 3,275,191,443,001
5. Step 5: Solve for x
   x = 3,275,191,443,001/838,490
6. Step 6: Final answer
   x = 3,906,059.04