Finding the Third Proportional to 15,380 and 21,993.38

Step by Step Solution

1. Step 1: Write the proportion equation
   15,380 : 21,993.38 = 21,993.38 : x
2. Step 2: Convert to fraction form
   15,380/21,993.38 = 21,993.38/x
3. Step 3: Cross multiply
   15,380x = 21,993.38 × 21,993.38
4. Step 4: Simplify right side
   15,380x = 483,708,543.89
5. Step 5: Solve for x
   x = 483,708,543.89/15,380
6. Step 6: Final answer
   x = 31,450.49