Finding the Third Proportional to 65,518 and 143,026

Step by Step Solution

1. Step 1: Write the proportion equation
   65,518 : 143,026 = 143,026 : x
2. Step 2: Convert to fraction form
   65,518/143,026 = 143,026/x
3. Step 3: Cross multiply
   65,518x = 143,026 × 143,026
4. Step 4: Simplify right side
   65,518x = 20,456,436,676
5. Step 5: Solve for x
   x = 20,456,436,676/65,518
6. Step 6: Final answer
   x = 312,226.21