Finding the Third Proportional to 1,554,397,557 and 2,222,806,805

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554,397,557 : 2,222,806,805 = 2,222,806,805 : x
2. Step 2: Convert to fraction form
   1,554,397,557/2,222,806,805 = 2,222,806,805/x
3. Step 3: Cross multiply
   1,554,397,557x = 2,222,806,805 × 2,222,806,805
4. Step 4: Simplify right side
   1,554,397,557x = 4,940,870,092,354,308,096
5. Step 5: Solve for x
   x = 4,940,870,092,354,308,096/1,554,397,557
6. Step 6: Final answer
   x = 3,178,639,898.21