Finding the Third Proportional to 79,947 and 117,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,947 : 117,328.50 = 117,328.50 : x
2. Step 2: Convert to fraction form
   79,947/117,328.50 = 117,328.50/x
3. Step 3: Cross multiply
   79,947x = 117,328.50 × 117,328.50
4. Step 4: Simplify right side
   79,947x = 13,765,976,912.25
5. Step 5: Solve for x
   x = 13,765,976,912.25/79,947
6. Step 6: Final answer
   x = 172,188.79