Finding the Third Proportional to 215,484 and 470,136

Step by Step Solution

1. Step 1: Write the proportion equation
   215,484 : 470,136 = 470,136 : x
2. Step 2: Convert to fraction form
   215,484/470,136 = 470,136/x
3. Step 3: Cross multiply
   215,484x = 470,136 × 470,136
4. Step 4: Simplify right side
   215,484x = 221,027,858,496
5. Step 5: Solve for x
   x = 221,027,858,496/215,484
6. Step 6: Final answer
   x = 1,025,727.47