Finding the Third Proportional to 158,772 and 342,472

Step by Step Solution

1. Step 1: Write the proportion equation
   158,772 : 342,472 = 342,472 : x
2. Step 2: Convert to fraction form
   158,772/342,472 = 342,472/x
3. Step 3: Cross multiply
   158,772x = 342,472 × 342,472
4. Step 4: Simplify right side
   158,772x = 117,287,070,784
5. Step 5: Solve for x
   x = 117,287,070,784/158,772
6. Step 6: Final answer
   x = 738,713.82