Finding the Third Proportional to 21,899 and 32,815

Step by Step Solution

1. Step 1: Write the proportion equation
   21,899 : 32,815 = 32,815 : x
2. Step 2: Convert to fraction form
   21,899/32,815 = 32,815/x
3. Step 3: Cross multiply
   21,899x = 32,815 × 32,815
4. Step 4: Simplify right side
   21,899x = 1,076,824,225
5. Step 5: Solve for x
   x = 1,076,824,225/21,899
6. Step 6: Final answer
   x = 49,172.30