Finding the Third Proportional to 470,270 and 672,222

Step by Step Solution

1. Step 1: Write the proportion equation
   470,270 : 672,222 = 672,222 : x
2. Step 2: Convert to fraction form
   470,270/672,222 = 672,222/x
3. Step 3: Cross multiply
   470,270x = 672,222 × 672,222
4. Step 4: Simplify right side
   470,270x = 451,882,417,284
5. Step 5: Solve for x
   x = 451,882,417,284/470,270
6. Step 6: Final answer
   x = 960,899.95