Finding the Third Proportional to 8,902.88 and 18,997.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,902.88 : 18,997.31 = 18,997.31 : x
2. Step 2: Convert to fraction form
   8,902.88/18,997.31 = 18,997.31/x
3. Step 3: Cross multiply
   8,902.88x = 18,997.31 × 18,997.31
4. Step 4: Simplify right side
   8,902.88x = 360,897,882.22
5. Step 5: Solve for x
   x = 360,897,882.22/8,902.88
6. Step 6: Final answer
   x = 40,537.23