Finding the Third Proportional to 21,520 and 47,300

Step by Step Solution

1. Step 1: Write the proportion equation
   21,520 : 47,300 = 47,300 : x
2. Step 2: Convert to fraction form
   21,520/47,300 = 47,300/x
3. Step 3: Cross multiply
   21,520x = 47,300 × 47,300
4. Step 4: Simplify right side
   21,520x = 2,237,290,000
5. Step 5: Solve for x
   x = 2,237,290,000/21,520
6. Step 6: Final answer
   x = 103,963.29