Finding the Third Proportional to 72,183 and 173,897

Step by Step Solution

1. Step 1: Write the proportion equation
   72,183 : 173,897 = 173,897 : x
2. Step 2: Convert to fraction form
   72,183/173,897 = 173,897/x
3. Step 3: Cross multiply
   72,183x = 173,897 × 173,897
4. Step 4: Simplify right side
   72,183x = 30,240,166,609
5. Step 5: Solve for x
   x = 30,240,166,609/72,183
6. Step 6: Final answer
   x = 418,937.51