Finding the Third Proportional to 920,128 and 1,396,744

Step by Step Solution

1. Step 1: Write the proportion equation
   920,128 : 1,396,744 = 1,396,744 : x
2. Step 2: Convert to fraction form
   920,128/1,396,744 = 1,396,744/x
3. Step 3: Cross multiply
   920,128x = 1,396,744 × 1,396,744
4. Step 4: Simplify right side
   920,128x = 1,950,893,801,536
5. Step 5: Solve for x
   x = 1,950,893,801,536/920,128
6. Step 6: Final answer
   x = 2,120,241.75