Finding the Third Proportional to 143,004 and 214,230

Step by Step Solution

1. Step 1: Write the proportion equation
   143,004 : 214,230 = 214,230 : x
2. Step 2: Convert to fraction form
   143,004/214,230 = 214,230/x
3. Step 3: Cross multiply
   143,004x = 214,230 × 214,230
4. Step 4: Simplify right side
   143,004x = 45,894,492,900
5. Step 5: Solve for x
   x = 45,894,492,900/143,004
6. Step 6: Final answer
   x = 320,931.53