Finding the Third Proportional to 118,820 and 253,048

Step by Step Solution

1. Step 1: Write the proportion equation
   118,820 : 253,048 = 253,048 : x
2. Step 2: Convert to fraction form
   118,820/253,048 = 253,048/x
3. Step 3: Cross multiply
   118,820x = 253,048 × 253,048
4. Step 4: Simplify right side
   118,820x = 64,033,290,304
5. Step 5: Solve for x
   x = 64,033,290,304/118,820
6. Step 6: Final answer
   x = 538,910.03