Finding the Third Proportional to 8,391,568.38 and 12,958,049.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,391,568.38 : 12,958,049.94 = 12,958,049.94 : x
2. Step 2: Convert to fraction form
   8,391,568.38/12,958,049.94 = 12,958,049.94/x
3. Step 3: Cross multiply
   8,391,568.38x = 12,958,049.94 × 12,958,049.94
4. Step 4: Simplify right side
   8,391,568.38x = 167,911,058,182,743.75
5. Step 5: Solve for x
   x = 167,911,058,182,743.75/8,391,568.38
6. Step 6: Final answer
   x = 20,009,496.52