Finding the Third Proportional to 215,512 and 470,184

Step by Step Solution

1. Step 1: Write the proportion equation
   215,512 : 470,184 = 470,184 : x
2. Step 2: Convert to fraction form
   215,512/470,184 = 470,184/x
3. Step 3: Cross multiply
   215,512x = 470,184 × 470,184
4. Step 4: Simplify right side
   215,512x = 221,072,993,856
5. Step 5: Solve for x
   x = 221,072,993,856/215,512
6. Step 6: Final answer
   x = 1,025,803.64