Finding the Third Proportional to 244,484 and 389,002

Step by Step Solution

1. Step 1: Write the proportion equation
   244,484 : 389,002 = 389,002 : x
2. Step 2: Convert to fraction form
   244,484/389,002 = 389,002/x
3. Step 3: Cross multiply
   244,484x = 389,002 × 389,002
4. Step 4: Simplify right side
   244,484x = 151,322,556,004
5. Step 5: Solve for x
   x = 151,322,556,004/244,484
6. Step 6: Final answer
   x = 618,946.66