Finding the Third Proportional to 221,548 and 480,488

Step by Step Solution

1. Step 1: Write the proportion equation
   221,548 : 480,488 = 480,488 : x
2. Step 2: Convert to fraction form
   221,548/480,488 = 480,488/x
3. Step 3: Cross multiply
   221,548x = 480,488 × 480,488
4. Step 4: Simplify right side
   221,548x = 230,868,718,144
5. Step 5: Solve for x
   x = 230,868,718,144/221,548
6. Step 6: Final answer
   x = 1,042,070.87