Finding the Third Proportional to 158,122 and 345,740

Step by Step Solution

1. Step 1: Write the proportion equation
   158,122 : 345,740 = 345,740 : x
2. Step 2: Convert to fraction form
   158,122/345,740 = 345,740/x
3. Step 3: Cross multiply
   158,122x = 345,740 × 345,740
4. Step 4: Simplify right side
   158,122x = 119,536,147,600
5. Step 5: Solve for x
   x = 119,536,147,600/158,122
6. Step 6: Final answer
   x = 755,974.17