Finding the Third Proportional to 215,150 and 472,760

Step by Step Solution

1. Step 1: Write the proportion equation
   215,150 : 472,760 = 472,760 : x
2. Step 2: Convert to fraction form
   215,150/472,760 = 472,760/x
3. Step 3: Cross multiply
   215,150x = 472,760 × 472,760
4. Step 4: Simplify right side
   215,150x = 223,502,017,600
5. Step 5: Solve for x
   x = 223,502,017,600/215,150
6. Step 6: Final answer
   x = 1,038,819.51