Finding the Third Proportional to 72,909 and 104,260

Step by Step Solution

1. Step 1: Write the proportion equation
   72,909 : 104,260 = 104,260 : x
2. Step 2: Convert to fraction form
   72,909/104,260 = 104,260/x
3. Step 3: Cross multiply
   72,909x = 104,260 × 104,260
4. Step 4: Simplify right side
   72,909x = 10,870,147,600
5. Step 5: Solve for x
   x = 10,870,147,600/72,909
6. Step 6: Final answer
   x = 149,091.99