Finding the Third Proportional to 69,714 and 143,136

Step by Step Solution

1. Step 1: Write the proportion equation
   69,714 : 143,136 = 143,136 : x
2. Step 2: Convert to fraction form
   69,714/143,136 = 143,136/x
3. Step 3: Cross multiply
   69,714x = 143,136 × 143,136
4. Step 4: Simplify right side
   69,714x = 20,487,914,496
5. Step 5: Solve for x
   x = 20,487,914,496/69,714
6. Step 6: Final answer
   x = 293,885.22