Finding the Third Proportional to 373,913 and 815,494

Step by Step Solution

1. Step 1: Write the proportion equation
   373,913 : 815,494 = 815,494 : x
2. Step 2: Convert to fraction form
   373,913/815,494 = 815,494/x
3. Step 3: Cross multiply
   373,913x = 815,494 × 815,494
4. Step 4: Simplify right side
   373,913x = 665,030,464,036
5. Step 5: Solve for x
   x = 665,030,464,036/373,913
6. Step 6: Final answer
   x = 1,778,570.05