Finding the Third Proportional to 72,590 and 108,885

Step by Step Solution

1. Step 1: Write the proportion equation
   72,590 : 108,885 = 108,885 : x
2. Step 2: Convert to fraction form
   72,590/108,885 = 108,885/x
3. Step 3: Cross multiply
   72,590x = 108,885 × 108,885
4. Step 4: Simplify right side
   72,590x = 11,855,943,225
5. Step 5: Solve for x
   x = 11,855,943,225/72,590
6. Step 6: Final answer
   x = 163,327.50