Finding the Third Proportional to 118,450 and 253,180

Step by Step Solution

1. Step 1: Write the proportion equation
   118,450 : 253,180 = 253,180 : x
2. Step 2: Convert to fraction form
   118,450/253,180 = 253,180/x
3. Step 3: Cross multiply
   118,450x = 253,180 × 253,180
4. Step 4: Simplify right side
   118,450x = 64,100,112,400
5. Step 5: Solve for x
   x = 64,100,112,400/118,450
6. Step 6: Final answer
   x = 541,157.56