Finding the Third Proportional to 30,724 and 74,062

Step by Step Solution

1. Step 1: Write the proportion equation
   30,724 : 74,062 = 74,062 : x
2. Step 2: Convert to fraction form
   30,724/74,062 = 74,062/x
3. Step 3: Cross multiply
   30,724x = 74,062 × 74,062
4. Step 4: Simplify right side
   30,724x = 5,485,179,844
5. Step 5: Solve for x
   x = 5,485,179,844/30,724
6. Step 6: Final answer
   x = 178,530.79