Finding the Third Proportional to 73,789.50 and 173,235

Step by Step Solution

1. Step 1: Write the proportion equation
   73,789.50 : 173,235 = 173,235 : x
2. Step 2: Convert to fraction form
   73,789.50/173,235 = 173,235/x
3. Step 3: Cross multiply
   73,789.50x = 173,235 × 173,235
4. Step 4: Simplify right side
   73,789.50x = 30,010,365,225
5. Step 5: Solve for x
   x = 30,010,365,225/73,789.50
6. Step 6: Final answer
   x = 406,702.38