Finding the Third Proportional to 158,854 and 342,116

Step by Step Solution

1. Step 1: Write the proportion equation
   158,854 : 342,116 = 342,116 : x
2. Step 2: Convert to fraction form
   158,854/342,116 = 342,116/x
3. Step 3: Cross multiply
   158,854x = 342,116 × 342,116
4. Step 4: Simplify right side
   158,854x = 117,043,357,456
5. Step 5: Solve for x
   x = 117,043,357,456/158,854
6. Step 6: Final answer
   x = 736,798.30