Finding the Third Proportional to 71,712 and 105,028

Step by Step Solution

1. Step 1: Write the proportion equation
   71,712 : 105,028 = 105,028 : x
2. Step 2: Convert to fraction form
   71,712/105,028 = 105,028/x
3. Step 3: Cross multiply
   71,712x = 105,028 × 105,028
4. Step 4: Simplify right side
   71,712x = 11,030,880,784
5. Step 5: Solve for x
   x = 11,030,880,784/71,712
6. Step 6: Final answer
   x = 153,821.97