Finding the Third Proportional to 2,621,828,109.75 and 5,617,624,198.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621,828,109.75 : 5,617,624,198.50 = 5,617,624,198.50 : x
2. Step 2: Convert to fraction form
   2,621,828,109.75/5,617,624,198.50 = 5,617,624,198.50/x
3. Step 3: Cross multiply
   2,621,828,109.75x = 5,617,624,198.50 × 5,617,624,198.50
4. Step 4: Simplify right side
   2,621,828,109.75x = 31,557,701,635,572,768,768
5. Step 5: Solve for x
   x = 31,557,701,635,572,768,768/2,621,828,109.75
6. Step 6: Final answer
   x = 12,036,525,780.70