Finding the Third Proportional to 251,115 and 372,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   251,115 : 372,328.50 = 372,328.50 : x
2. Step 2: Convert to fraction form
   251,115/372,328.50 = 372,328.50/x
3. Step 3: Cross multiply
   251,115x = 372,328.50 × 372,328.50
4. Step 4: Simplify right side
   251,115x = 138,628,511,912.25
5. Step 5: Solve for x
   x = 138,628,511,912.25/251,115
6. Step 6: Final answer
   x = 552,051.90