Finding the Third Proportional to 373,894.42 and 815,460.54

Step by Step Solution

1. Step 1: Write the proportion equation
   373,894.42 : 815,460.54 = 815,460.54 : x
2. Step 2: Convert to fraction form
   373,894.42/815,460.54 = 815,460.54/x
3. Step 3: Cross multiply
   373,894.42x = 815,460.54 × 815,460.54
4. Step 4: Simplify right side
   373,894.42x = 664,975,890,768.10
5. Step 5: Solve for x
   x = 664,975,890,768.10/373,894.42
6. Step 6: Final answer
   x = 1,778,512.49