Finding the Third Proportional to 121,054.50 and 264,222

Step by Step Solution

1. Step 1: Write the proportion equation
   121,054.50 : 264,222 = 264,222 : x
2. Step 2: Convert to fraction form
   121,054.50/264,222 = 264,222/x
3. Step 3: Cross multiply
   121,054.50x = 264,222 × 264,222
4. Step 4: Simplify right side
   121,054.50x = 69,813,265,284
5. Step 5: Solve for x
   x = 69,813,265,284/121,054.50
6. Step 6: Final answer
   x = 576,709.38