Finding the Third Proportional to 21,600 and 32,690

Step by Step Solution

1. Step 1: Write the proportion equation
   21,600 : 32,690 = 32,690 : x
2. Step 2: Convert to fraction form
   21,600/32,690 = 32,690/x
3. Step 3: Cross multiply
   21,600x = 32,690 × 32,690
4. Step 4: Simplify right side
   21,600x = 1,068,636,100
5. Step 5: Solve for x
   x = 1,068,636,100/21,600
6. Step 6: Final answer
   x = 49,473.89