Finding the Third Proportional to 1,554,397,441 and 2,222,806,620

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554,397,441 : 2,222,806,620 = 2,222,806,620 : x
2. Step 2: Convert to fraction form
   1,554,397,441/2,222,806,620 = 2,222,806,620/x
3. Step 3: Cross multiply
   1,554,397,441x = 2,222,806,620 × 2,222,806,620
4. Step 4: Simplify right side
   1,554,397,441x = 4,940,869,269,915,824,128
5. Step 5: Solve for x
   x = 4,940,869,269,915,824,128/1,554,397,441
6. Step 6: Final answer
   x = 3,178,639,606.31