Finding the Third Proportional to 396,987 and 936,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   396,987 : 936,355.50 = 936,355.50 : x
2. Step 2: Convert to fraction form
   396,987/936,355.50 = 936,355.50/x
3. Step 3: Cross multiply
   396,987x = 936,355.50 × 936,355.50
4. Step 4: Simplify right side
   396,987x = 876,761,622,380.25
5. Step 5: Solve for x
   x = 876,761,622,380.25/396,987
6. Step 6: Final answer
   x = 2,208,539.88