Finding the Third Proportional to 72,357.75 and 111,818.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72,357.75 : 111,818.25 = 111,818.25 : x
2. Step 2: Convert to fraction form
   72,357.75/111,818.25 = 111,818.25/x
3. Step 3: Cross multiply
   72,357.75x = 111,818.25 × 111,818.25
4. Step 4: Simplify right side
   72,357.75x = 12,503,321,033.06
5. Step 5: Solve for x
   x = 12,503,321,033.06/72,357.75
6. Step 6: Final answer
   x = 172,798.64