Finding the Third Proportional to 36,320 and 57,072

Step by Step Solution

1. Step 1: Write the proportion equation
   36,320 : 57,072 = 57,072 : x
2. Step 2: Convert to fraction form
   36,320/57,072 = 57,072/x
3. Step 3: Cross multiply
   36,320x = 57,072 × 57,072
4. Step 4: Simplify right side
   36,320x = 3,257,213,184
5. Step 5: Solve for x
   x = 3,257,213,184/36,320
6. Step 6: Final answer
   x = 89,680.98