Finding the Third Proportional to 8,436,156 and 12,599,019

Step by Step Solution

1. Step 1: Write the proportion equation
   8,436,156 : 12,599,019 = 12,599,019 : x
2. Step 2: Convert to fraction form
   8,436,156/12,599,019 = 12,599,019/x
3. Step 3: Cross multiply
   8,436,156x = 12,599,019 × 12,599,019
4. Step 4: Simplify right side
   8,436,156x = 158,735,279,762,361
5. Step 5: Solve for x
   x = 158,735,279,762,361/8,436,156
6. Step 6: Final answer
   x = 18,816,067.38