Finding the Third Proportional to 118,200 and 259,363.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,200 : 259,363.50 = 259,363.50 : x
2. Step 2: Convert to fraction form
   118,200/259,363.50 = 259,363.50/x
3. Step 3: Cross multiply
   118,200x = 259,363.50 × 259,363.50
4. Step 4: Simplify right side
   118,200x = 67,269,425,132.25
5. Step 5: Solve for x
   x = 67,269,425,132.25/118,200
6. Step 6: Final answer
   x = 569,115.27