Finding the Third Proportional to 118,134 and 259,231.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,134 : 259,231.50 = 259,231.50 : x
2. Step 2: Convert to fraction form
   118,134/259,231.50 = 259,231.50/x
3. Step 3: Cross multiply
   118,134x = 259,231.50 × 259,231.50
4. Step 4: Simplify right side
   118,134x = 67,200,970,592.25
5. Step 5: Solve for x
   x = 67,200,970,592.25/118,134
6. Step 6: Final answer
   x = 568,853.76