Finding the Third Proportional to 373,923 and 815,501

Step by Step Solution

1. Step 1: Write the proportion equation
   373,923 : 815,501 = 815,501 : x
2. Step 2: Convert to fraction form
   373,923/815,501 = 815,501/x
3. Step 3: Cross multiply
   373,923x = 815,501 × 815,501
4. Step 4: Simplify right side
   373,923x = 665,041,881,001
5. Step 5: Solve for x
   x = 665,041,881,001/373,923
6. Step 6: Final answer
   x = 1,778,553.02