Finding the Third Proportional to 72,932 and 168,945

Step by Step Solution

1. Step 1: Write the proportion equation
   72,932 : 168,945 = 168,945 : x
2. Step 2: Convert to fraction form
   72,932/168,945 = 168,945/x
3. Step 3: Cross multiply
   72,932x = 168,945 × 168,945
4. Step 4: Simplify right side
   72,932x = 28,542,413,025
5. Step 5: Solve for x
   x = 28,542,413,025/72,932
6. Step 6: Final answer
   x = 391,356.51