Finding the Third Proportional to 118,156 and 254,864

Step by Step Solution

1. Step 1: Write the proportion equation
   118,156 : 254,864 = 254,864 : x
2. Step 2: Convert to fraction form
   118,156/254,864 = 254,864/x
3. Step 3: Cross multiply
   118,156x = 254,864 × 254,864
4. Step 4: Simplify right side
   118,156x = 64,955,658,496
5. Step 5: Solve for x
   x = 64,955,658,496/118,156
6. Step 6: Final answer
   x = 549,744.90