Finding the Third Proportional to 158,978 and 342,332

Step by Step Solution

1. Step 1: Write the proportion equation
   158,978 : 342,332 = 342,332 : x
2. Step 2: Convert to fraction form
   158,978/342,332 = 342,332/x
3. Step 3: Cross multiply
   158,978x = 342,332 × 342,332
4. Step 4: Simplify right side
   158,978x = 117,191,198,224
5. Step 5: Solve for x
   x = 117,191,198,224/158,978
6. Step 6: Final answer
   x = 737,153.56