Finding the Third Proportional to 215,638 and 467,928

Step by Step Solution

1. Step 1: Write the proportion equation
   215,638 : 467,928 = 467,928 : x
2. Step 2: Convert to fraction form
   215,638/467,928 = 467,928/x
3. Step 3: Cross multiply
   215,638x = 467,928 × 467,928
4. Step 4: Simplify right side
   215,638x = 218,956,613,184
5. Step 5: Solve for x
   x = 218,956,613,184/215,638
6. Step 6: Final answer
   x = 1,015,389.74