Finding the Third Proportional to 224,140 and 485,612

Step by Step Solution

1. Step 1: Write the proportion equation
   224,140 : 485,612 = 485,612 : x
2. Step 2: Convert to fraction form
   224,140/485,612 = 485,612/x
3. Step 3: Cross multiply
   224,140x = 485,612 × 485,612
4. Step 4: Simplify right side
   224,140x = 235,819,014,544
5. Step 5: Solve for x
   x = 235,819,014,544/224,140
6. Step 6: Final answer
   x = 1,052,105.89