Finding the Third Proportional to 30,072 and 45,816

Step by Step Solution

1. Step 1: Write the proportion equation
   30,072 : 45,816 = 45,816 : x
2. Step 2: Convert to fraction form
   30,072/45,816 = 45,816/x
3. Step 3: Cross multiply
   30,072x = 45,816 × 45,816
4. Step 4: Simplify right side
   30,072x = 2,099,105,856
5. Step 5: Solve for x
   x = 2,099,105,856/30,072
6. Step 6: Final answer
   x = 69,802.67