Finding the Third Proportional to 428,412 and 923,016

Step by Step Solution

1. Step 1: Write the proportion equation
   428,412 : 923,016 = 923,016 : x
2. Step 2: Convert to fraction form
   428,412/923,016 = 923,016/x
3. Step 3: Cross multiply
   428,412x = 923,016 × 923,016
4. Step 4: Simplify right side
   428,412x = 851,958,536,256
5. Step 5: Solve for x
   x = 851,958,536,256/428,412
6. Step 6: Final answer
   x = 1,988,643.03