Finding the Third Proportional to 158,068 and 345,642

Step by Step Solution

1. Step 1: Write the proportion equation
   158,068 : 345,642 = 345,642 : x
2. Step 2: Convert to fraction form
   158,068/345,642 = 345,642/x
3. Step 3: Cross multiply
   158,068x = 345,642 × 345,642
4. Step 4: Simplify right side
   158,068x = 119,468,392,164
5. Step 5: Solve for x
   x = 119,468,392,164/158,068
6. Step 6: Final answer
   x = 755,803.78