Finding the Third Proportional to 13,149.75 and 19,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,149.75 : 19,861.50 = 19,861.50 : x
2. Step 2: Convert to fraction form
   13,149.75/19,861.50 = 19,861.50/x
3. Step 3: Cross multiply
   13,149.75x = 19,861.50 × 19,861.50
4. Step 4: Simplify right side
   13,149.75x = 394,479,182.25
5. Step 5: Solve for x
   x = 394,479,182.25/13,149.75
6. Step 6: Final answer
   x = 29,998.99