Finding the Third Proportional to 118,197 and 259,357.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,197 : 259,357.50 = 259,357.50 : x
2. Step 2: Convert to fraction form
   118,197/259,357.50 = 259,357.50/x
3. Step 3: Cross multiply
   118,197x = 259,357.50 × 259,357.50
4. Step 4: Simplify right side
   118,197x = 67,266,312,806.25
5. Step 5: Solve for x
   x = 67,266,312,806.25/118,197
6. Step 6: Final answer
   x = 569,103.39