Finding the Third Proportional to 89,773.50 and 189,015

Step by Step Solution

1. Step 1: Write the proportion equation
   89,773.50 : 189,015 = 189,015 : x
2. Step 2: Convert to fraction form
   89,773.50/189,015 = 189,015/x
3. Step 3: Cross multiply
   89,773.50x = 189,015 × 189,015
4. Step 4: Simplify right side
   89,773.50x = 35,726,670,225
5. Step 5: Solve for x
   x = 35,726,670,225/89,773.50
6. Step 6: Final answer
   x = 397,964.55