Finding the Third Proportional to 8,189,622 and 12,845,928

Step by Step Solution

1. Step 1: Write the proportion equation
   8,189,622 : 12,845,928 = 12,845,928 : x
2. Step 2: Convert to fraction form
   8,189,622/12,845,928 = 12,845,928/x
3. Step 3: Cross multiply
   8,189,622x = 12,845,928 × 12,845,928
4. Step 4: Simplify right side
   8,189,622x = 165,017,866,181,184
5. Step 5: Solve for x
   x = 165,017,866,181,184/8,189,622
6. Step 6: Final answer
   x = 20,149,631.59