Finding the Third Proportional to 409,072.50 and 837,945

Step by Step Solution

1. Step 1: Write the proportion equation
   409,072.50 : 837,945 = 837,945 : x
2. Step 2: Convert to fraction form
   409,072.50/837,945 = 837,945/x
3. Step 3: Cross multiply
   409,072.50x = 837,945 × 837,945
4. Step 4: Simplify right side
   409,072.50x = 702,151,823,025
5. Step 5: Solve for x
   x = 702,151,823,025/409,072.50
6. Step 6: Final answer
   x = 1,716,448.36