Finding the Third Proportional to 72,981 and 89,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,981 : 89,383.50 = 89,383.50 : x
2. Step 2: Convert to fraction form
   72,981/89,383.50 = 89,383.50/x
3. Step 3: Cross multiply
   72,981x = 89,383.50 × 89,383.50
4. Step 4: Simplify right side
   72,981x = 7,989,410,072.25
5. Step 5: Solve for x
   x = 7,989,410,072.25/72,981
6. Step 6: Final answer
   x = 109,472.47