Finding the Third Proportional to 8,665,185 and 12,113,839

Step by Step Solution

1. Step 1: Write the proportion equation
   8,665,185 : 12,113,839 = 12,113,839 : x
2. Step 2: Convert to fraction form
   8,665,185/12,113,839 = 12,113,839/x
3. Step 3: Cross multiply
   8,665,185x = 12,113,839 × 12,113,839
4. Step 4: Simplify right side
   8,665,185x = 146,745,095,317,921
5. Step 5: Solve for x
   x = 146,745,095,317,921/8,665,185
6. Step 6: Final answer
   x = 16,935,021.62