Finding the Third Proportional to 379,846 and 810,542

Step by Step Solution

1. Step 1: Write the proportion equation
   379,846 : 810,542 = 810,542 : x
2. Step 2: Convert to fraction form
   379,846/810,542 = 810,542/x
3. Step 3: Cross multiply
   379,846x = 810,542 × 810,542
4. Step 4: Simplify right side
   379,846x = 656,978,333,764
5. Step 5: Solve for x
   x = 656,978,333,764/379,846
6. Step 6: Final answer
   x = 1,729,591.29