Finding the Third Proportional to 15,405 and 23,900

Step by Step Solution

1. Step 1: Write the proportion equation
   15,405 : 23,900 = 23,900 : x
2. Step 2: Convert to fraction form
   15,405/23,900 = 23,900/x
3. Step 3: Cross multiply
   15,405x = 23,900 × 23,900
4. Step 4: Simplify right side
   15,405x = 571,210,000
5. Step 5: Solve for x
   x = 571,210,000/15,405
6. Step 6: Final answer
   x = 37,079.52