Finding the Third Proportional to 72,808 and 109,880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,808 : 109,880.50 = 109,880.50 : x
2. Step 2: Convert to fraction form
   72,808/109,880.50 = 109,880.50/x
3. Step 3: Cross multiply
   72,808x = 109,880.50 × 109,880.50
4. Step 4: Simplify right side
   72,808x = 12,073,724,280.25
5. Step 5: Solve for x
   x = 12,073,724,280.25/72,808
6. Step 6: Final answer
   x = 165,829.64