Finding the Third Proportional to 8,690,182 and 13,147,099

Step by Step Solution

1. Step 1: Write the proportion equation
   8,690,182 : 13,147,099 = 13,147,099 : x
2. Step 2: Convert to fraction form
   8,690,182/13,147,099 = 13,147,099/x
3. Step 3: Cross multiply
   8,690,182x = 13,147,099 × 13,147,099
4. Step 4: Simplify right side
   8,690,182x = 172,846,212,115,801
5. Step 5: Solve for x
   x = 172,846,212,115,801/8,690,182
6. Step 6: Final answer
   x = 19,889,826.49