Finding the Third Proportional to 20,336 and 31,472

Step by Step Solution

1. Step 1: Write the proportion equation
   20,336 : 31,472 = 31,472 : x
2. Step 2: Convert to fraction form
   20,336/31,472 = 31,472/x
3. Step 3: Cross multiply
   20,336x = 31,472 × 31,472
4. Step 4: Simplify right side
   20,336x = 990,486,784
5. Step 5: Solve for x
   x = 990,486,784/20,336
6. Step 6: Final answer
   x = 48,706.08