Finding the Third Proportional to 218,338 and 473,540

Step by Step Solution

1. Step 1: Write the proportion equation
   218,338 : 473,540 = 473,540 : x
2. Step 2: Convert to fraction form
   218,338/473,540 = 473,540/x
3. Step 3: Cross multiply
   218,338x = 473,540 × 473,540
4. Step 4: Simplify right side
   218,338x = 224,240,131,600
5. Step 5: Solve for x
   x = 224,240,131,600/218,338
6. Step 6: Final answer
   x = 1,027,032.09