Finding the Third Proportional to 1,554,397,558 and 2,222,806,806

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554,397,558 : 2,222,806,806 = 2,222,806,806 : x
2. Step 2: Convert to fraction form
   1,554,397,558/2,222,806,806 = 2,222,806,806/x
3. Step 3: Cross multiply
   1,554,397,558x = 2,222,806,806 × 2,222,806,806
4. Step 4: Simplify right side
   1,554,397,558x = 4,940,870,096,799,921,152
5. Step 5: Solve for x
   x = 4,940,870,096,799,921,152/1,554,397,558
6. Step 6: Final answer
   x = 3,178,639,899.02