Finding the Third Proportional to 89,303.50 and 121,616

Step by Step Solution

1. Step 1: Write the proportion equation
   89,303.50 : 121,616 = 121,616 : x
2. Step 2: Convert to fraction form
   89,303.50/121,616 = 121,616/x
3. Step 3: Cross multiply
   89,303.50x = 121,616 × 121,616
4. Step 4: Simplify right side
   89,303.50x = 14,790,451,456
5. Step 5: Solve for x
   x = 14,790,451,456/89,303.50
6. Step 6: Final answer
   x = 165,620.06