Finding the Third Proportional to 55,646.25 and 131,227.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,646.25 : 131,227.50 = 131,227.50 : x
2. Step 2: Convert to fraction form
   55,646.25/131,227.50 = 131,227.50/x
3. Step 3: Cross multiply
   55,646.25x = 131,227.50 × 131,227.50
4. Step 4: Simplify right side
   55,646.25x = 17,220,656,756.25
5. Step 5: Solve for x
   x = 17,220,656,756.25/55,646.25
6. Step 6: Final answer
   x = 309,466.62