Finding the Third Proportional to 64,986 and 141,716

Step by Step Solution

1. Step 1: Write the proportion equation
   64,986 : 141,716 = 141,716 : x
2. Step 2: Convert to fraction form
   64,986/141,716 = 141,716/x
3. Step 3: Cross multiply
   64,986x = 141,716 × 141,716
4. Step 4: Simplify right side
   64,986x = 20,083,424,656
5. Step 5: Solve for x
   x = 20,083,424,656/64,986
6. Step 6: Final answer
   x = 309,042.33