Finding the Third Proportional to 118,499 and 253,675

Step by Step Solution

1. Step 1: Write the proportion equation
   118,499 : 253,675 = 253,675 : x
2. Step 2: Convert to fraction form
   118,499/253,675 = 253,675/x
3. Step 3: Cross multiply
   118,499x = 253,675 × 253,675
4. Step 4: Simplify right side
   118,499x = 64,351,005,625
5. Step 5: Solve for x
   x = 64,351,005,625/118,499
6. Step 6: Final answer
   x = 543,051.04