Finding the Third Proportional to 361,422 and 483,003

Step by Step Solution

1. Step 1: Write the proportion equation
   361,422 : 483,003 = 483,003 : x
2. Step 2: Convert to fraction form
   361,422/483,003 = 483,003/x
3. Step 3: Cross multiply
   361,422x = 483,003 × 483,003
4. Step 4: Simplify right side
   361,422x = 233,291,898,009
5. Step 5: Solve for x
   x = 233,291,898,009/361,422
6. Step 6: Final answer
   x = 645,483.39