Finding the Third Proportional to 483,628 and 751,390

Step by Step Solution

1. Step 1: Write the proportion equation
   483,628 : 751,390 = 751,390 : x
2. Step 2: Convert to fraction form
   483,628/751,390 = 751,390/x
3. Step 3: Cross multiply
   483,628x = 751,390 × 751,390
4. Step 4: Simplify right side
   483,628x = 564,586,932,100
5. Step 5: Solve for x
   x = 564,586,932,100/483,628
6. Step 6: Final answer
   x = 1,167,399.18