Finding the Third Proportional to 220,658 and 476,300

Step by Step Solution

1. Step 1: Write the proportion equation
   220,658 : 476,300 = 476,300 : x
2. Step 2: Convert to fraction form
   220,658/476,300 = 476,300/x
3. Step 3: Cross multiply
   220,658x = 476,300 × 476,300
4. Step 4: Simplify right side
   220,658x = 226,861,690,000
5. Step 5: Solve for x
   x = 226,861,690,000/220,658
6. Step 6: Final answer
   x = 1,028,114.50