Finding the Third Proportional to 221,578 and 483,254

Step by Step Solution

1. Step 1: Write the proportion equation
   221,578 : 483,254 = 483,254 : x
2. Step 2: Convert to fraction form
   221,578/483,254 = 483,254/x
3. Step 3: Cross multiply
   221,578x = 483,254 × 483,254
4. Step 4: Simplify right side
   221,578x = 233,534,428,516
5. Step 5: Solve for x
   x = 233,534,428,516/221,578
6. Step 6: Final answer
   x = 1,053,960.36