Finding the Third Proportional to 428,662 and 905,924

Step by Step Solution

1. Step 1: Write the proportion equation
   428,662 : 905,924 = 905,924 : x
2. Step 2: Convert to fraction form
   428,662/905,924 = 905,924/x
3. Step 3: Cross multiply
   428,662x = 905,924 × 905,924
4. Step 4: Simplify right side
   428,662x = 820,698,293,776
5. Step 5: Solve for x
   x = 820,698,293,776/428,662
6. Step 6: Final answer
   x = 1,914,558.08