Finding the Third Proportional to 840,342 and 1,798,812

Step by Step Solution

1. Step 1: Write the proportion equation
   840,342 : 1,798,812 = 1,798,812 : x
2. Step 2: Convert to fraction form
   840,342/1,798,812 = 1,798,812/x
3. Step 3: Cross multiply
   840,342x = 1,798,812 × 1,798,812
4. Step 4: Simplify right side
   840,342x = 3,235,724,611,344
5. Step 5: Solve for x
   x = 3,235,724,611,344/840,342
6. Step 6: Final answer
   x = 3,850,485.41