Finding the Third Proportional to 8,690,101 and 13,147,008

Step by Step Solution

1. Step 1: Write the proportion equation
   8,690,101 : 13,147,008 = 13,147,008 : x
2. Step 2: Convert to fraction form
   8,690,101/13,147,008 = 13,147,008/x
3. Step 3: Cross multiply
   8,690,101x = 13,147,008 × 13,147,008
4. Step 4: Simplify right side
   8,690,101x = 172,843,819,352,064
5. Step 5: Solve for x
   x = 172,843,819,352,064/8,690,101
6. Step 6: Final answer
   x = 19,889,736.53