Finding the Third Proportional to 20,528 and 30,656

Step by Step Solution

1. Step 1: Write the proportion equation
   20,528 : 30,656 = 30,656 : x
2. Step 2: Convert to fraction form
   20,528/30,656 = 30,656/x
3. Step 3: Cross multiply
   20,528x = 30,656 × 30,656
4. Step 4: Simplify right side
   20,528x = 939,790,336
5. Step 5: Solve for x
   x = 939,790,336/20,528
6. Step 6: Final answer
   x = 45,780.90