Finding the Third Proportional to 143,056 and 216,424

Step by Step Solution

1. Step 1: Write the proportion equation
   143,056 : 216,424 = 216,424 : x
2. Step 2: Convert to fraction form
   143,056/216,424 = 216,424/x
3. Step 3: Cross multiply
   143,056x = 216,424 × 216,424
4. Step 4: Simplify right side
   143,056x = 46,839,347,776
5. Step 5: Solve for x
   x = 46,839,347,776/143,056
6. Step 6: Final answer
   x = 327,419.67