Finding the Third Proportional to 65,656 and 143,191

Step by Step Solution

1. Step 1: Write the proportion equation
   65,656 : 143,191 = 143,191 : x
2. Step 2: Convert to fraction form
   65,656/143,191 = 143,191/x
3. Step 3: Cross multiply
   65,656x = 143,191 × 143,191
4. Step 4: Simplify right side
   65,656x = 20,503,662,481
5. Step 5: Solve for x
   x = 20,503,662,481/65,656
6. Step 6: Final answer
   x = 312,289.24