Finding the Third Proportional to 2,412,778,155 and 5,206,645,435

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412,778,155 : 5,206,645,435 = 5,206,645,435 : x
2. Step 2: Convert to fraction form
   2,412,778,155/5,206,645,435 = 5,206,645,435/x
3. Step 3: Cross multiply
   2,412,778,155x = 5,206,645,435 × 5,206,645,435
4. Step 4: Simplify right side
   2,412,778,155x = 27,109,156,685,806,338,048
5. Step 5: Solve for x
   x = 27,109,156,685,806,338,048/2,412,778,155
6. Step 6: Final answer
   x = 11,235,660,696.62