Finding the Third Proportional to 30,781.27 and 66,369.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,781.27 : 66,369.38 = 66,369.38 : x
2. Step 2: Convert to fraction form
   30,781.27/66,369.38 = 66,369.38/x
3. Step 3: Cross multiply
   30,781.27x = 66,369.38 × 66,369.38
4. Step 4: Simplify right side
   30,781.27x = 4,404,893,937.89
5. Step 5: Solve for x
   x = 4,404,893,937.89/30,781.27
6. Step 6: Final answer
   x = 143,103.08