Finding the Third Proportional to 189,353.50 and 408,230

Step by Step Solution

1. Step 1: Write the proportion equation
   189,353.50 : 408,230 = 408,230 : x
2. Step 2: Convert to fraction form
   189,353.50/408,230 = 408,230/x
3. Step 3: Cross multiply
   189,353.50x = 408,230 × 408,230
4. Step 4: Simplify right side
   189,353.50x = 166,651,732,900
5. Step 5: Solve for x
   x = 166,651,732,900/189,353.50
6. Step 6: Final answer
   x = 880,109.07