Finding the Third Proportional to 51,781.78 and 108,791.86

Step by Step Solution

1. Step 1: Write the proportion equation
   51,781.78 : 108,791.86 = 108,791.86 : x
2. Step 2: Convert to fraction form
   51,781.78/108,791.86 = 108,791.86/x
3. Step 3: Cross multiply
   51,781.78x = 108,791.86 × 108,791.86
4. Step 4: Simplify right side
   51,781.78x = 11,835,668,666.27
5. Step 5: Solve for x
   x = 11,835,668,666.27/51,781.78
6. Step 6: Final answer
   x = 228,568.20