Finding the Third Proportional to 396,876.50 and 870,832

Step by Step Solution

1. Step 1: Write the proportion equation
   396,876.50 : 870,832 = 870,832 : x
2. Step 2: Convert to fraction form
   396,876.50/870,832 = 870,832/x
3. Step 3: Cross multiply
   396,876.50x = 870,832 × 870,832
4. Step 4: Simplify right side
   396,876.50x = 758,348,372,224
5. Step 5: Solve for x
   x = 758,348,372,224/396,876.50
6. Step 6: Final answer
   x = 1,910,791.83