Finding the Third Proportional to 72,731.25 and 111,754.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72,731.25 : 111,754.69 = 111,754.69 : x
2. Step 2: Convert to fraction form
   72,731.25/111,754.69 = 111,754.69/x
3. Step 3: Cross multiply
   72,731.25x = 111,754.69 × 111,754.69
4. Step 4: Simplify right side
   72,731.25x = 12,489,110,178.22
5. Step 5: Solve for x
   x = 12,489,110,178.22/72,731.25
6. Step 6: Final answer
   x = 171,715.87