Finding the Third Proportional to 1,222,132 and 2,687,912

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222,132 : 2,687,912 = 2,687,912 : x
2. Step 2: Convert to fraction form
   1,222,132/2,687,912 = 2,687,912/x
3. Step 3: Cross multiply
   1,222,132x = 2,687,912 × 2,687,912
4. Step 4: Simplify right side
   1,222,132x = 7,224,870,919,744
5. Step 5: Solve for x
   x = 7,224,870,919,744/1,222,132
6. Step 6: Final answer
   x = 5,911,694.42