Finding the Third Proportional to 40,722 and 84,036

Step by Step Solution

1. Step 1: Write the proportion equation
   40,722 : 84,036 = 84,036 : x
2. Step 2: Convert to fraction form
   40,722/84,036 = 84,036/x
3. Step 3: Cross multiply
   40,722x = 84,036 × 84,036
4. Step 4: Simplify right side
   40,722x = 7,062,049,296
5. Step 5: Solve for x
   x = 7,062,049,296/40,722
6. Step 6: Final answer
   x = 173,420.98