Finding the Third Proportional to 20,428 and 32,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,428 : 32,099.50 = 32,099.50 : x
2. Step 2: Convert to fraction form
   20,428/32,099.50 = 32,099.50/x
3. Step 3: Cross multiply
   20,428x = 32,099.50 × 32,099.50
4. Step 4: Simplify right side
   20,428x = 1,030,377,900.25
5. Step 5: Solve for x
   x = 1,030,377,900.25/20,428
6. Step 6: Final answer
   x = 50,439.49