Finding the Third Proportional to 863,136 and 1,320,981

Step by Step Solution

1. Step 1: Write the proportion equation
   863,136 : 1,320,981 = 1,320,981 : x
2. Step 2: Convert to fraction form
   863,136/1,320,981 = 1,320,981/x
3. Step 3: Cross multiply
   863,136x = 1,320,981 × 1,320,981
4. Step 4: Simplify right side
   863,136x = 1,744,990,802,361
5. Step 5: Solve for x
   x = 1,744,990,802,361/863,136
6. Step 6: Final answer
   x = 2,021,686.97