Finding the Third Proportional to 397,363.50 and 865,662

Step by Step Solution

1. Step 1: Write the proportion equation
   397,363.50 : 865,662 = 865,662 : x
2. Step 2: Convert to fraction form
   397,363.50/865,662 = 865,662/x
3. Step 3: Cross multiply
   397,363.50x = 865,662 × 865,662
4. Step 4: Simplify right side
   397,363.50x = 749,370,698,244
5. Step 5: Solve for x
   x = 749,370,698,244/397,363.50
6. Step 6: Final answer
   x = 1,885,856.90