Finding the Third Proportional to 45,520 and 73,072

Step by Step Solution

1. Step 1: Write the proportion equation
   45,520 : 73,072 = 73,072 : x
2. Step 2: Convert to fraction form
   45,520/73,072 = 73,072/x
3. Step 3: Cross multiply
   45,520x = 73,072 × 73,072
4. Step 4: Simplify right side
   45,520x = 5,339,517,184
5. Step 5: Solve for x
   x = 5,339,517,184/45,520
6. Step 6: Final answer
   x = 117,300.47