Finding the Third Proportional to 72,236 and 174,028

Step by Step Solution

1. Step 1: Write the proportion equation
   72,236 : 174,028 = 174,028 : x
2. Step 2: Convert to fraction form
   72,236/174,028 = 174,028/x
3. Step 3: Cross multiply
   72,236x = 174,028 × 174,028
4. Step 4: Simplify right side
   72,236x = 30,285,744,784
5. Step 5: Solve for x
   x = 30,285,744,784/72,236
6. Step 6: Final answer
   x = 419,261.10