Finding the Third Proportional to 21,624 and 31,604

Step by Step Solution

1. Step 1: Write the proportion equation
   21,624 : 31,604 = 31,604 : x
2. Step 2: Convert to fraction form
   21,624/31,604 = 31,604/x
3. Step 3: Cross multiply
   21,624x = 31,604 × 31,604
4. Step 4: Simplify right side
   21,624x = 998,812,816
5. Step 5: Solve for x
   x = 998,812,816/21,624
6. Step 6: Final answer
   x = 46,190.01