Finding the Third Proportional to 300,438 and 467,892

Step by Step Solution

1. Step 1: Write the proportion equation
   300,438 : 467,892 = 467,892 : x
2. Step 2: Convert to fraction form
   300,438/467,892 = 467,892/x
3. Step 3: Cross multiply
   300,438x = 467,892 × 467,892
4. Step 4: Simplify right side
   300,438x = 218,922,923,664
5. Step 5: Solve for x
   x = 218,922,923,664/300,438
6. Step 6: Final answer
   x = 728,679.21