Finding the Third Proportional to 2,258,221,643 and 4,891,689,839.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258,221,643 : 4,891,689,839.50 = 4,891,689,839.50 : x
2. Step 2: Convert to fraction form
   2,258,221,643/4,891,689,839.50 = 4,891,689,839.50/x
3. Step 3: Cross multiply
   2,258,221,643x = 4,891,689,839.50 × 4,891,689,839.50
4. Step 4: Simplify right side
   2,258,221,643x = 23,928,629,485,867,536,384
5. Step 5: Solve for x
   x = 23,928,629,485,867,536,384/2,258,221,643
6. Step 6: Final answer
   x = 10,596,227,150.71