Finding the Third Proportional to 30,509 and 73,472

Step by Step Solution

1. Step 1: Write the proportion equation
   30,509 : 73,472 = 73,472 : x
2. Step 2: Convert to fraction form
   30,509/73,472 = 73,472/x
3. Step 3: Cross multiply
   30,509x = 73,472 × 73,472
4. Step 4: Simplify right side
   30,509x = 5,398,134,784
5. Step 5: Solve for x
   x = 5,398,134,784/30,509
6. Step 6: Final answer
   x = 176,935.82