Finding the Third Proportional to 139,022 and 282,956

Step by Step Solution

1. Step 1: Write the proportion equation
   139,022 : 282,956 = 282,956 : x
2. Step 2: Convert to fraction form
   139,022/282,956 = 282,956/x
3. Step 3: Cross multiply
   139,022x = 282,956 × 282,956
4. Step 4: Simplify right side
   139,022x = 80,064,097,936
5. Step 5: Solve for x
   x = 80,064,097,936/139,022
6. Step 6: Final answer
   x = 575,909.55