Finding the Third Proportional to 8,624 and 17,428

Step by Step Solution

1. Step 1: Write the proportion equation
   8,624 : 17,428 = 17,428 : x
2. Step 2: Convert to fraction form
   8,624/17,428 = 17,428/x
3. Step 3: Cross multiply
   8,624x = 17,428 × 17,428
4. Step 4: Simplify right side
   8,624x = 303,735,184
5. Step 5: Solve for x
   x = 303,735,184/8,624
6. Step 6: Final answer
   x = 35,219.76