Finding the Third Proportional to 118,234.50 and 259,463.25

Step by Step Solution

1. Step 1: Write the proportion equation
   118,234.50 : 259,463.25 = 259,463.25 : x
2. Step 2: Convert to fraction form
   118,234.50/259,463.25 = 259,463.25/x
3. Step 3: Cross multiply
   118,234.50x = 259,463.25 × 259,463.25
4. Step 4: Simplify right side
   118,234.50x = 67,321,178,100.56
5. Step 5: Solve for x
   x = 67,321,178,100.56/118,234.50
6. Step 6: Final answer
   x = 569,386.92