Finding the Third Proportional to 1,399,639,788 and 3,006,990,629.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,639,788 : 3,006,990,629.50 = 3,006,990,629.50 : x
2. Step 2: Convert to fraction form
   1,399,639,788/3,006,990,629.50 = 3,006,990,629.50/x
3. Step 3: Cross multiply
   1,399,639,788x = 3,006,990,629.50 × 3,006,990,629.50
4. Step 4: Simplify right side
   1,399,639,788x = 9,041,992,645,900,806,144
5. Step 5: Solve for x
   x = 9,041,992,645,900,806,144/1,399,639,788
6. Step 6: Final answer
   x = 6,460,228,355.48