Finding the Third Proportional to 238,155 and 324,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   238,155 : 324,328.50 = 324,328.50 : x
2. Step 2: Convert to fraction form
   238,155/324,328.50 = 324,328.50/x
3. Step 3: Cross multiply
   238,155x = 324,328.50 × 324,328.50
4. Step 4: Simplify right side
   238,155x = 105,188,975,912.25
5. Step 5: Solve for x
   x = 105,188,975,912.25/238,155
6. Step 6: Final answer
   x = 441,682.84