Finding the Third Proportional to 19,872 and 29,227.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,872 : 29,227.50 = 29,227.50 : x
2. Step 2: Convert to fraction form
   19,872/29,227.50 = 29,227.50/x
3. Step 3: Cross multiply
   19,872x = 29,227.50 × 29,227.50
4. Step 4: Simplify right side
   19,872x = 854,246,756.25
5. Step 5: Solve for x
   x = 854,246,756.25/19,872
6. Step 6: Final answer
   x = 42,987.46