Finding the Third Proportional to 12,924 and 20,499.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,924 : 20,499.50 = 20,499.50 : x
2. Step 2: Convert to fraction form
   12,924/20,499.50 = 20,499.50/x
3. Step 3: Cross multiply
   12,924x = 20,499.50 × 20,499.50
4. Step 4: Simplify right side
   12,924x = 420,229,500.25
5. Step 5: Solve for x
   x = 420,229,500.25/12,924
6. Step 6: Final answer
   x = 32,515.44