Finding the Third Proportional to 3,839.06 and 9,131.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839.06 : 9,131.06 = 9,131.06 : x
2. Step 2: Convert to fraction form
   3,839.06/9,131.06 = 9,131.06/x
3. Step 3: Cross multiply
   3,839.06x = 9,131.06 × 9,131.06
4. Step 4: Simplify right side
   3,839.06x = 83,376,302.38
5. Step 5: Solve for x
   x = 83,376,302.38/3,839.06
6. Step 6: Final answer
   x = 21,717.88