Finding the Third Proportional to 356,593.50 and 783,171

Step by Step Solution

1. Step 1: Write the proportion equation
   356,593.50 : 783,171 = 783,171 : x
2. Step 2: Convert to fraction form
   356,593.50/783,171 = 783,171/x
3. Step 3: Cross multiply
   356,593.50x = 783,171 × 783,171
4. Step 4: Simplify right side
   356,593.50x = 613,356,815,241
5. Step 5: Solve for x
   x = 613,356,815,241/356,593.50
6. Step 6: Final answer
   x = 1,720,044.86