Finding the Third Proportional to 67,572 and 143,892

Step by Step Solution

1. Step 1: Write the proportion equation
   67,572 : 143,892 = 143,892 : x
2. Step 2: Convert to fraction form
   67,572/143,892 = 143,892/x
3. Step 3: Cross multiply
   67,572x = 143,892 × 143,892
4. Step 4: Simplify right side
   67,572x = 20,704,907,664
5. Step 5: Solve for x
   x = 20,704,907,664/67,572
6. Step 6: Final answer
   x = 306,412.53