Finding the Third Proportional to 72,274.50 and 111,229.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,274.50 : 111,229.88 = 111,229.88 : x
2. Step 2: Convert to fraction form
   72,274.50/111,229.88 = 111,229.88/x
3. Step 3: Cross multiply
   72,274.50x = 111,229.88 × 111,229.88
4. Step 4: Simplify right side
   72,274.50x = 12,372,085,092.52
5. Step 5: Solve for x
   x = 12,372,085,092.52/72,274.50
6. Step 6: Final answer
   x = 171,181.88