Finding the Third Proportional to 118,500 and 256,674

Step by Step Solution

1. Step 1: Write the proportion equation
   118,500 : 256,674 = 256,674 : x
2. Step 2: Convert to fraction form
   118,500/256,674 = 256,674/x
3. Step 3: Cross multiply
   118,500x = 256,674 × 256,674
4. Step 4: Simplify right side
   118,500x = 65,881,542,276
5. Step 5: Solve for x
   x = 65,881,542,276/118,500
6. Step 6: Final answer
   x = 555,962.38