Finding the Third Proportional to 422,838 and 921,993.75

Step by Step Solution

1. Step 1: Write the proportion equation
   422,838 : 921,993.75 = 921,993.75 : x
2. Step 2: Convert to fraction form
   422,838/921,993.75 = 921,993.75/x
3. Step 3: Cross multiply
   422,838x = 921,993.75 × 921,993.75
4. Step 4: Simplify right side
   422,838x = 850,072,475,039.06
5. Step 5: Solve for x
   x = 850,072,475,039.06/422,838
6. Step 6: Final answer
   x = 2,010,397.54