Finding the Third Proportional to 21,620 and 46,400

Step by Step Solution

1. Step 1: Write the proportion equation
   21,620 : 46,400 = 46,400 : x
2. Step 2: Convert to fraction form
   21,620/46,400 = 46,400/x
3. Step 3: Cross multiply
   21,620x = 46,400 × 46,400
4. Step 4: Simplify right side
   21,620x = 2,152,960,000
5. Step 5: Solve for x
   x = 2,152,960,000/21,620
6. Step 6: Final answer
   x = 99,581.87