Finding the Third Proportional to 118,230 and 259,453.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,230 : 259,453.50 = 259,453.50 : x
2. Step 2: Convert to fraction form
   118,230/259,453.50 = 259,453.50/x
3. Step 3: Cross multiply
   118,230x = 259,453.50 × 259,453.50
4. Step 4: Simplify right side
   118,230x = 67,316,118,662.25
5. Step 5: Solve for x
   x = 67,316,118,662.25/118,230
6. Step 6: Final answer
   x = 569,365.80