Finding the Third Proportional to 31,528 and 72,976

Step by Step Solution

1. Step 1: Write the proportion equation
   31,528 : 72,976 = 72,976 : x
2. Step 2: Convert to fraction form
   31,528/72,976 = 72,976/x
3. Step 3: Cross multiply
   31,528x = 72,976 × 72,976
4. Step 4: Simplify right side
   31,528x = 5,325,496,576
5. Step 5: Solve for x
   x = 5,325,496,576/31,528
6. Step 6: Final answer
   x = 168,913.24