Finding the Third Proportional to 238,124 and 324,280

Step by Step Solution

1. Step 1: Write the proportion equation
   238,124 : 324,280 = 324,280 : x
2. Step 2: Convert to fraction form
   238,124/324,280 = 324,280/x
3. Step 3: Cross multiply
   238,124x = 324,280 × 324,280
4. Step 4: Simplify right side
   238,124x = 105,157,518,400
5. Step 5: Solve for x
   x = 105,157,518,400/238,124
6. Step 6: Final answer
   x = 441,608.23