Finding the Third Proportional to 99,072 and 174,906

Step by Step Solution

1. Step 1: Write the proportion equation
   99,072 : 174,906 = 174,906 : x
2. Step 2: Convert to fraction form
   99,072/174,906 = 174,906/x
3. Step 3: Cross multiply
   99,072x = 174,906 × 174,906
4. Step 4: Simplify right side
   99,072x = 30,592,108,836
5. Step 5: Solve for x
   x = 30,592,108,836/99,072
6. Step 6: Final answer
   x = 308,786.63