Finding the Third Proportional to 105,440 and 124,030

Step by Step Solution

1. Step 1: Write the proportion equation
   105,440 : 124,030 = 124,030 : x
2. Step 2: Convert to fraction form
   105,440/124,030 = 124,030/x
3. Step 3: Cross multiply
   105,440x = 124,030 × 124,030
4. Step 4: Simplify right side
   105,440x = 15,383,440,900
5. Step 5: Solve for x
   x = 15,383,440,900/105,440
6. Step 6: Final answer
   x = 145,897.58