Finding the Third Proportional to 72,606 and 108,910

Step by Step Solution

1. Step 1: Write the proportion equation
   72,606 : 108,910 = 108,910 : x
2. Step 2: Convert to fraction form
   72,606/108,910 = 108,910/x
3. Step 3: Cross multiply
   72,606x = 108,910 × 108,910
4. Step 4: Simplify right side
   72,606x = 11,861,388,100
5. Step 5: Solve for x
   x = 11,861,388,100/72,606
6. Step 6: Final answer
   x = 163,366.50