Finding the Third Proportional to 199,456.50 and 432,144

Step by Step Solution

1. Step 1: Write the proportion equation
   199,456.50 : 432,144 = 432,144 : x
2. Step 2: Convert to fraction form
   199,456.50/432,144 = 432,144/x
3. Step 3: Cross multiply
   199,456.50x = 432,144 × 432,144
4. Step 4: Simplify right side
   199,456.50x = 186,748,436,736
5. Step 5: Solve for x
   x = 186,748,436,736/199,456.50
6. Step 6: Final answer
   x = 936,286.54