Finding the Third Proportional to 11,983.31 and 18,142.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,983.31 : 18,142.13 = 18,142.13 : x
2. Step 2: Convert to fraction form
   11,983.31/18,142.13 = 18,142.13/x
3. Step 3: Cross multiply
   11,983.31x = 18,142.13 × 18,142.13
4. Step 4: Simplify right side
   11,983.31x = 329,136,699.52
5. Step 5: Solve for x
   x = 329,136,699.52/11,983.31
6. Step 6: Final answer
   x = 27,466.25