Finding the Third Proportional to 21,636.50 and 32,688.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,636.50 : 32,688.75 = 32,688.75 : x
2. Step 2: Convert to fraction form
   21,636.50/32,688.75 = 32,688.75/x
3. Step 3: Cross multiply
   21,636.50x = 32,688.75 × 32,688.75
4. Step 4: Simplify right side
   21,636.50x = 1,068,554,376.56
5. Step 5: Solve for x
   x = 1,068,554,376.56/21,636.50
6. Step 6: Final answer
   x = 49,386.66