Finding the Third Proportional to 34,272.56 and 71,286.75

Step by Step Solution

1. Step 1: Write the proportion equation
   34,272.56 : 71,286.75 = 71,286.75 : x
2. Step 2: Convert to fraction form
   34,272.56/71,286.75 = 71,286.75/x
3. Step 3: Cross multiply
   34,272.56x = 71,286.75 × 71,286.75
4. Step 4: Simplify right side
   34,272.56x = 5,081,800,725.56
5. Step 5: Solve for x
   x = 5,081,800,725.56/34,272.56
6. Step 6: Final answer
   x = 148,276.07