Finding the Third Proportional to 308,401 and 483,900

Step by Step Solution

1. Step 1: Write the proportion equation
   308,401 : 483,900 = 483,900 : x
2. Step 2: Convert to fraction form
   308,401/483,900 = 483,900/x
3. Step 3: Cross multiply
   308,401x = 483,900 × 483,900
4. Step 4: Simplify right side
   308,401x = 234,159,210,000
5. Step 5: Solve for x
   x = 234,159,210,000/308,401
6. Step 6: Final answer
   x = 759,268.65