Finding the Third Proportional to 215,820 and 470,250

Step by Step Solution

1. Step 1: Write the proportion equation
   215,820 : 470,250 = 470,250 : x
2. Step 2: Convert to fraction form
   215,820/470,250 = 470,250/x
3. Step 3: Cross multiply
   215,820x = 470,250 × 470,250
4. Step 4: Simplify right side
   215,820x = 221,135,062,500
5. Step 5: Solve for x
   x = 221,135,062,500/215,820
6. Step 6: Final answer
   x = 1,024,627.29