Finding the Third Proportional to 30,072 and 42,745

Step by Step Solution

1. Step 1: Write the proportion equation
   30,072 : 42,745 = 42,745 : x
2. Step 2: Convert to fraction form
   30,072/42,745 = 42,745/x
3. Step 3: Cross multiply
   30,072x = 42,745 × 42,745
4. Step 4: Simplify right side
   30,072x = 1,827,135,025
5. Step 5: Solve for x
   x = 1,827,135,025/30,072
6. Step 6: Final answer
   x = 60,758.68