Finding the Third Proportional to 143,008 and 214,236

Step by Step Solution

1. Step 1: Write the proportion equation
   143,008 : 214,236 = 214,236 : x
2. Step 2: Convert to fraction form
   143,008/214,236 = 214,236/x
3. Step 3: Cross multiply
   143,008x = 214,236 × 214,236
4. Step 4: Simplify right side
   143,008x = 45,897,063,696
5. Step 5: Solve for x
   x = 45,897,063,696/143,008
6. Step 6: Final answer
   x = 320,940.53