Finding the Third Proportional to 217,420 and 466,980

Step by Step Solution

1. Step 1: Write the proportion equation
   217,420 : 466,980 = 466,980 : x
2. Step 2: Convert to fraction form
   217,420/466,980 = 466,980/x
3. Step 3: Cross multiply
   217,420x = 466,980 × 466,980
4. Step 4: Simplify right side
   217,420x = 218,070,320,400
5. Step 5: Solve for x
   x = 218,070,320,400/217,420
6. Step 6: Final answer
   x = 1,002,991.08