Finding the Third Proportional to 66,587 and 141,436

Step by Step Solution

1. Step 1: Write the proportion equation
   66,587 : 141,436 = 141,436 : x
2. Step 2: Convert to fraction form
   66,587/141,436 = 141,436/x
3. Step 3: Cross multiply
   66,587x = 141,436 × 141,436
4. Step 4: Simplify right side
   66,587x = 20,004,142,096
5. Step 5: Solve for x
   x = 20,004,142,096/66,587
6. Step 6: Final answer
   x = 300,421.13