Finding the Third Proportional to 8,665,148 and 12,113,789

Step by Step Solution

1. Step 1: Write the proportion equation
   8,665,148 : 12,113,789 = 12,113,789 : x
2. Step 2: Convert to fraction form
   8,665,148/12,113,789 = 12,113,789/x
3. Step 3: Cross multiply
   8,665,148x = 12,113,789 × 12,113,789
4. Step 4: Simplify right side
   8,665,148x = 146,743,883,936,521
5. Step 5: Solve for x
   x = 146,743,883,936,521/8,665,148
6. Step 6: Final answer
   x = 16,934,954.13