Finding the Third Proportional to 118,327.50 and 259,605

Step by Step Solution

1. Step 1: Write the proportion equation
   118,327.50 : 259,605 = 259,605 : x
2. Step 2: Convert to fraction form
   118,327.50/259,605 = 259,605/x
3. Step 3: Cross multiply
   118,327.50x = 259,605 × 259,605
4. Step 4: Simplify right side
   118,327.50x = 67,394,756,025
5. Step 5: Solve for x
   x = 67,394,756,025/118,327.50
6. Step 6: Final answer
   x = 569,561.23