Finding the Third Proportional to 215,224 and 500,140

Step by Step Solution

1. Step 1: Write the proportion equation
   215,224 : 500,140 = 500,140 : x
2. Step 2: Convert to fraction form
   215,224/500,140 = 500,140/x
3. Step 3: Cross multiply
   215,224x = 500,140 × 500,140
4. Step 4: Simplify right side
   215,224x = 250,140,019,600
5. Step 5: Solve for x
   x = 250,140,019,600/215,224
6. Step 6: Final answer
   x = 1,162,231.07