Finding the Third Proportional to 1,615,313,736 and 3,513,647,124

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615,313,736 : 3,513,647,124 = 3,513,647,124 : x
2. Step 2: Convert to fraction form
   1,615,313,736/3,513,647,124 = 3,513,647,124/x
3. Step 3: Cross multiply
   1,615,313,736x = 3,513,647,124 × 3,513,647,124
4. Step 4: Simplify right side
   1,615,313,736x = 12,345,716,111,993,470,976
5. Step 5: Solve for x
   x = 12,345,716,111,993,470,976/1,615,313,736
6. Step 6: Final answer
   x = 7,642,921,518.49