Finding the Third Proportional to 21,204 and 45,900

Step by Step Solution

1. Step 1: Write the proportion equation
   21,204 : 45,900 = 45,900 : x
2. Step 2: Convert to fraction form
   21,204/45,900 = 45,900/x
3. Step 3: Cross multiply
   21,204x = 45,900 × 45,900
4. Step 4: Simplify right side
   21,204x = 2,106,810,000
5. Step 5: Solve for x
   x = 2,106,810,000/21,204
6. Step 6: Final answer
   x = 99,359.08