Finding the Third Proportional to 121,984.50 and 264,330

Step by Step Solution

1. Step 1: Write the proportion equation
   121,984.50 : 264,330 = 264,330 : x
2. Step 2: Convert to fraction form
   121,984.50/264,330 = 264,330/x
3. Step 3: Cross multiply
   121,984.50x = 264,330 × 264,330
4. Step 4: Simplify right side
   121,984.50x = 69,870,348,900
5. Step 5: Solve for x
   x = 69,870,348,900/121,984.50
6. Step 6: Final answer
   x = 572,780.55