Finding the Third Proportional to 373,914 and 815,503.50

Step by Step Solution

1. Step 1: Write the proportion equation
   373,914 : 815,503.50 = 815,503.50 : x
2. Step 2: Convert to fraction form
   373,914/815,503.50 = 815,503.50/x
3. Step 3: Cross multiply
   373,914x = 815,503.50 × 815,503.50
4. Step 4: Simplify right side
   373,914x = 665,045,958,512.25
5. Step 5: Solve for x
   x = 665,045,958,512.25/373,914
6. Step 6: Final answer
   x = 1,778,606.73