Finding the Third Proportional to 30,236 and 64,072

Step by Step Solution

1. Step 1: Write the proportion equation
   30,236 : 64,072 = 64,072 : x
2. Step 2: Convert to fraction form
   30,236/64,072 = 64,072/x
3. Step 3: Cross multiply
   30,236x = 64,072 × 64,072
4. Step 4: Simplify right side
   30,236x = 4,105,221,184
5. Step 5: Solve for x
   x = 4,105,221,184/30,236
6. Step 6: Final answer
   x = 135,772.63