Finding the Third Proportional to 158,986 and 345,582

Step by Step Solution

1. Step 1: Write the proportion equation
   158,986 : 345,582 = 345,582 : x
2. Step 2: Convert to fraction form
   158,986/345,582 = 345,582/x
3. Step 3: Cross multiply
   158,986x = 345,582 × 345,582
4. Step 4: Simplify right side
   158,986x = 119,426,918,724
5. Step 5: Solve for x
   x = 119,426,918,724/158,986
6. Step 6: Final answer
   x = 751,178.84