Finding the Third Proportional to 89,451 and 133,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,451 : 133,717.50 = 133,717.50 : x
2. Step 2: Convert to fraction form
   89,451/133,717.50 = 133,717.50/x
3. Step 3: Cross multiply
   89,451x = 133,717.50 × 133,717.50
4. Step 4: Simplify right side
   89,451x = 17,880,369,806.25
5. Step 5: Solve for x
   x = 17,880,369,806.25/89,451
6. Step 6: Final answer
   x = 199,890.11