Finding the Third Proportional to 8,187,258,538.50 and 12,576,630,736.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,187,258,538.50 : 12,576,630,736.50 = 12,576,630,736.50 : x
2. Step 2: Convert to fraction form
   8,187,258,538.50/12,576,630,736.50 = 12,576,630,736.50/x
3. Step 3: Cross multiply
   8,187,258,538.50x = 12,576,630,736.50 × 12,576,630,736.50
4. Step 4: Simplify right side
   8,187,258,538.50x = 158,171,640,682,276,519,936
5. Step 5: Solve for x
   x = 158,171,640,682,276,519,936/8,187,258,538.50
6. Step 6: Final answer
   x = 19,319,243,424.22