Finding the Third Proportional to 51,131.25 and 74,418.75

Step by Step Solution

1. Step 1: Write the proportion equation
   51,131.25 : 74,418.75 = 74,418.75 : x
2. Step 2: Convert to fraction form
   51,131.25/74,418.75 = 74,418.75/x
3. Step 3: Cross multiply
   51,131.25x = 74,418.75 × 74,418.75
4. Step 4: Simplify right side
   51,131.25x = 5,538,150,351.56
5. Step 5: Solve for x
   x = 5,538,150,351.56/51,131.25
6. Step 6: Final answer
   x = 108,312.44