Finding the Third Proportional to 30,760.38 and 72,427.29

Step by Step Solution

1. Step 1: Write the proportion equation
   30,760.38 : 72,427.29 = 72,427.29 : x
2. Step 2: Convert to fraction form
   30,760.38/72,427.29 = 72,427.29/x
3. Step 3: Cross multiply
   30,760.38x = 72,427.29 × 72,427.29
4. Step 4: Simplify right side
   30,760.38x = 5,245,712,200.94
5. Step 5: Solve for x
   x = 5,245,712,200.94/30,760.38
6. Step 6: Final answer
   x = 170,534.69