Finding the Third Proportional to 373,854 and 820,086

Step by Step Solution

1. Step 1: Write the proportion equation
   373,854 : 820,086 = 820,086 : x
2. Step 2: Convert to fraction form
   373,854/820,086 = 820,086/x
3. Step 3: Cross multiply
   373,854x = 820,086 × 820,086
4. Step 4: Simplify right side
   373,854x = 672,541,047,396
5. Step 5: Solve for x
   x = 672,541,047,396/373,854
6. Step 6: Final answer
   x = 1,798,940.35