Finding the Third Proportional to 33,007.50 and 71,275.78

Step by Step Solution

1. Step 1: Write the proportion equation
   33,007.50 : 71,275.78 = 71,275.78 : x
2. Step 2: Convert to fraction form
   33,007.50/71,275.78 = 71,275.78/x
3. Step 3: Cross multiply
   33,007.50x = 71,275.78 × 71,275.78
4. Step 4: Simplify right side
   33,007.50x = 5,080,236,992.80
5. Step 5: Solve for x
   x = 5,080,236,992.80/33,007.50
6. Step 6: Final answer
   x = 153,911.60