Finding the Third Proportional to 220,910 and 477,124

Step by Step Solution

1. Step 1: Write the proportion equation
   220,910 : 477,124 = 477,124 : x
2. Step 2: Convert to fraction form
   220,910/477,124 = 477,124/x
3. Step 3: Cross multiply
   220,910x = 477,124 × 477,124
4. Step 4: Simplify right side
   220,910x = 227,647,311,376
5. Step 5: Solve for x
   x = 227,647,311,376/220,910
6. Step 6: Final answer
   x = 1,030,497.99