Finding the Third Proportional to 807,728 and 1,267,160

Step by Step Solution

1. Step 1: Write the proportion equation
   807,728 : 1,267,160 = 1,267,160 : x
2. Step 2: Convert to fraction form
   807,728/1,267,160 = 1,267,160/x
3. Step 3: Cross multiply
   807,728x = 1,267,160 × 1,267,160
4. Step 4: Simplify right side
   807,728x = 1,605,694,465,600
5. Step 5: Solve for x
   x = 1,605,694,465,600/807,728
6. Step 6: Final answer
   x = 1,987,914.82