Finding the Third Proportional to 118,297.50 and 259,495.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,297.50 : 259,495.50 = 259,495.50 : x
2. Step 2: Convert to fraction form
   118,297.50/259,495.50 = 259,495.50/x
3. Step 3: Cross multiply
   118,297.50x = 259,495.50 × 259,495.50
4. Step 4: Simplify right side
   118,297.50x = 67,337,914,520.25
5. Step 5: Solve for x
   x = 67,337,914,520.25/118,297.50
6. Step 6: Final answer
   x = 569,225.17