Finding the Third Proportional to 248,355 and 373,261.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,355 : 373,261.50 = 373,261.50 : x
2. Step 2: Convert to fraction form
   248,355/373,261.50 = 373,261.50/x
3. Step 3: Cross multiply
   248,355x = 373,261.50 × 373,261.50
4. Step 4: Simplify right side
   248,355x = 139,324,147,382.25
5. Step 5: Solve for x
   x = 139,324,147,382.25/248,355
6. Step 6: Final answer
   x = 560,987.89