Finding the Third Proportional to 21,520 and 30,476

Step by Step Solution

1. Step 1: Write the proportion equation
   21,520 : 30,476 = 30,476 : x
2. Step 2: Convert to fraction form
   21,520/30,476 = 30,476/x
3. Step 3: Cross multiply
   21,520x = 30,476 × 30,476
4. Step 4: Simplify right side
   21,520x = 928,786,576
5. Step 5: Solve for x
   x = 928,786,576/21,520
6. Step 6: Final answer
   x = 43,159.23