Finding the Third Proportional to 89,966.50 and 192,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,966.50 : 192,388.50 = 192,388.50 : x
2. Step 2: Convert to fraction form
   89,966.50/192,388.50 = 192,388.50/x
3. Step 3: Cross multiply
   89,966.50x = 192,388.50 × 192,388.50
4. Step 4: Simplify right side
   89,966.50x = 37,013,334,932.25
5. Step 5: Solve for x
   x = 37,013,334,932.25/89,966.50
6. Step 6: Final answer
   x = 411,412.41