Finding the Third Proportional to 118,930.78 and 247,672.69

Step by Step Solution

1. Step 1: Write the proportion equation
   118,930.78 : 247,672.69 = 247,672.69 : x
2. Step 2: Convert to fraction form
   118,930.78/247,672.69 = 247,672.69/x
3. Step 3: Cross multiply
   118,930.78x = 247,672.69 × 247,672.69
4. Step 4: Simplify right side
   118,930.78x = 61,341,760,133.47
5. Step 5: Solve for x
   x = 61,341,760,133.47/118,930.78
6. Step 6: Final answer
   x = 515,776.99