Finding the Third Proportional to 374,146.50 and 820,731

Step by Step Solution

1. Step 1: Write the proportion equation
   374,146.50 : 820,731 = 820,731 : x
2. Step 2: Convert to fraction form
   374,146.50/820,731 = 820,731/x
3. Step 3: Cross multiply
   374,146.50x = 820,731 × 820,731
4. Step 4: Simplify right side
   374,146.50x = 673,599,374,361
5. Step 5: Solve for x
   x = 673,599,374,361/374,146.50
6. Step 6: Final answer
   x = 1,800,362.62