Finding the Third Proportional to 55,647 and 131,229.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,647 : 131,229.50 = 131,229.50 : x
2. Step 2: Convert to fraction form
   55,647/131,229.50 = 131,229.50/x
3. Step 3: Cross multiply
   55,647x = 131,229.50 × 131,229.50
4. Step 4: Simplify right side
   55,647x = 17,221,181,670.25
5. Step 5: Solve for x
   x = 17,221,181,670.25/55,647
6. Step 6: Final answer
   x = 309,471.88