Finding the Third Proportional to 79,608 and 108,172.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,608 : 108,172.50 = 108,172.50 : x
2. Step 2: Convert to fraction form
   79,608/108,172.50 = 108,172.50/x
3. Step 3: Cross multiply
   79,608x = 108,172.50 × 108,172.50
4. Step 4: Simplify right side
   79,608x = 11,701,289,756.25
5. Step 5: Solve for x
   x = 11,701,289,756.25/79,608
6. Step 6: Final answer
   x = 146,986.36