Finding the Third Proportional to 142,927 and 282,240

Step by Step Solution

1. Step 1: Write the proportion equation
   142,927 : 282,240 = 282,240 : x
2. Step 2: Convert to fraction form
   142,927/282,240 = 282,240/x
3. Step 3: Cross multiply
   142,927x = 282,240 × 282,240
4. Step 4: Simplify right side
   142,927x = 79,659,417,600
5. Step 5: Solve for x
   x = 79,659,417,600/142,927
6. Step 6: Final answer
   x = 557,343.38