Finding the Third Proportional to 67,986 and 142,164

Step by Step Solution

1. Step 1: Write the proportion equation
   67,986 : 142,164 = 142,164 : x
2. Step 2: Convert to fraction form
   67,986/142,164 = 142,164/x
3. Step 3: Cross multiply
   67,986x = 142,164 × 142,164
4. Step 4: Simplify right side
   67,986x = 20,210,602,896
5. Step 5: Solve for x
   x = 20,210,602,896/67,986
6. Step 6: Final answer
   x = 297,275.95