Finding the Third Proportional to 118,434 and 253,748

Step by Step Solution

1. Step 1: Write the proportion equation
   118,434 : 253,748 = 253,748 : x
2. Step 2: Convert to fraction form
   118,434/253,748 = 253,748/x
3. Step 3: Cross multiply
   118,434x = 253,748 × 253,748
4. Step 4: Simplify right side
   118,434x = 64,388,047,504
5. Step 5: Solve for x
   x = 64,388,047,504/118,434
6. Step 6: Final answer
   x = 543,661.85