Finding the Third Proportional to 72,193.50 and 111,570.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72,193.50 : 111,570.75 = 111,570.75 : x
2. Step 2: Convert to fraction form
   72,193.50/111,570.75 = 111,570.75/x
3. Step 3: Cross multiply
   72,193.50x = 111,570.75 × 111,570.75
4. Step 4: Simplify right side
   72,193.50x = 12,448,032,255.56
5. Step 5: Solve for x
   x = 12,448,032,255.56/72,193.50
6. Step 6: Final answer
   x = 172,425.94