Finding the Third Proportional to 66,614 and 141,434

Step by Step Solution

1. Step 1: Write the proportion equation
   66,614 : 141,434 = 141,434 : x
2. Step 2: Convert to fraction form
   66,614/141,434 = 141,434/x
3. Step 3: Cross multiply
   66,614x = 141,434 × 141,434
4. Step 4: Simplify right side
   66,614x = 20,003,576,356
5. Step 5: Solve for x
   x = 20,003,576,356/66,614
6. Step 6: Final answer
   x = 300,290.88