Finding the Third Proportional to 7,613,227,434 and 11,638,661,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,613,227,434 : 11,638,661,436.50 = 11,638,661,436.50 : x
2. Step 2: Convert to fraction form
   7,613,227,434/11,638,661,436.50 = 11,638,661,436.50/x
3. Step 3: Cross multiply
   7,613,227,434x = 11,638,661,436.50 × 11,638,661,436.50
4. Step 4: Simplify right side
   7,613,227,434x = 135,458,440,033,472,249,856
5. Step 5: Solve for x
   x = 135,458,440,033,472,249,856/7,613,227,434
6. Step 6: Final answer
   x = 17,792,511,941.59