Finding the Third Proportional to 79,272 and 105,678

Step by Step Solution

1. Step 1: Write the proportion equation
   79,272 : 105,678 = 105,678 : x
2. Step 2: Convert to fraction form
   79,272/105,678 = 105,678/x
3. Step 3: Cross multiply
   79,272x = 105,678 × 105,678
4. Step 4: Simplify right side
   79,272x = 11,167,839,684
5. Step 5: Solve for x
   x = 11,167,839,684/79,272
6. Step 6: Final answer
   x = 140,880.00