Finding the Third Proportional to 74,431.41 and 115,280.72

Step by Step Solution

1. Step 1: Write the proportion equation
   74,431.41 : 115,280.72 = 115,280.72 : x
2. Step 2: Convert to fraction form
   74,431.41/115,280.72 = 115,280.72/x
3. Step 3: Cross multiply
   74,431.41x = 115,280.72 × 115,280.72
4. Step 4: Simplify right side
   74,431.41x = 13,289,644,115.52
5. Step 5: Solve for x
   x = 13,289,644,115.52/74,431.41
6. Step 6: Final answer
   x = 178,548.88