Finding the Third Proportional to 223,574 and 479,140

Step by Step Solution

1. Step 1: Write the proportion equation
   223,574 : 479,140 = 479,140 : x
2. Step 2: Convert to fraction form
   223,574/479,140 = 479,140/x
3. Step 3: Cross multiply
   223,574x = 479,140 × 479,140
4. Step 4: Simplify right side
   223,574x = 229,575,139,600
5. Step 5: Solve for x
   x = 229,575,139,600/223,574
6. Step 6: Final answer
   x = 1,026,841.85