Finding the Third Proportional to 72,388 and 104,538

Step by Step Solution

1. Step 1: Write the proportion equation
   72,388 : 104,538 = 104,538 : x
2. Step 2: Convert to fraction form
   72,388/104,538 = 104,538/x
3. Step 3: Cross multiply
   72,388x = 104,538 × 104,538
4. Step 4: Simplify right side
   72,388x = 10,928,193,444
5. Step 5: Solve for x
   x = 10,928,193,444/72,388
6. Step 6: Final answer
   x = 150,966.92