Finding the Third Proportional to 13,567.50 and 19,981.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,567.50 : 19,981.69 = 19,981.69 : x
2. Step 2: Convert to fraction form
   13,567.50/19,981.69 = 19,981.69/x
3. Step 3: Cross multiply
   13,567.50x = 19,981.69 × 19,981.69
4. Step 4: Simplify right side
   13,567.50x = 399,267,835.35
5. Step 5: Solve for x
   x = 399,267,835.35/13,567.50
6. Step 6: Final answer
   x = 29,428.25