Finding the Third Proportional to 409,560.38 and 641,073

Step by Step Solution

1. Step 1: Write the proportion equation
   409,560.38 : 641,073 = 641,073 : x
2. Step 2: Convert to fraction form
   409,560.38/641,073 = 641,073/x
3. Step 3: Cross multiply
   409,560.38x = 641,073 × 641,073
4. Step 4: Simplify right side
   409,560.38x = 410,974,591,329
5. Step 5: Solve for x
   x = 410,974,591,329/409,560.38
6. Step 6: Final answer
   x = 1,003,453.01