Finding the Third Proportional to 21,663 and 29,200

Step by Step Solution

1. Step 1: Write the proportion equation
   21,663 : 29,200 = 29,200 : x
2. Step 2: Convert to fraction form
   21,663/29,200 = 29,200/x
3. Step 3: Cross multiply
   21,663x = 29,200 × 29,200
4. Step 4: Simplify right side
   21,663x = 852,640,000
5. Step 5: Solve for x
   x = 852,640,000/21,663
6. Step 6: Final answer
   x = 39,359.28