Finding the Third Proportional to 8,436,066 and 12,598,908

Step by Step Solution

1. Step 1: Write the proportion equation
   8,436,066 : 12,598,908 = 12,598,908 : x
2. Step 2: Convert to fraction form
   8,436,066/12,598,908 = 12,598,908/x
3. Step 3: Cross multiply
   8,436,066x = 12,598,908 × 12,598,908
4. Step 4: Simplify right side
   8,436,066x = 158,732,482,792,464
5. Step 5: Solve for x
   x = 158,732,482,792,464/8,436,066
6. Step 6: Final answer
   x = 18,815,936.57