Finding the Third Proportional to 840,336 and 1,303,353

Step by Step Solution

1. Step 1: Write the proportion equation
   840,336 : 1,303,353 = 1,303,353 : x
2. Step 2: Convert to fraction form
   840,336/1,303,353 = 1,303,353/x
3. Step 3: Cross multiply
   840,336x = 1,303,353 × 1,303,353
4. Step 4: Simplify right side
   840,336x = 1,698,729,042,609
5. Step 5: Solve for x
   x = 1,698,729,042,609/840,336
6. Step 6: Final answer
   x = 2,021,487.88