Finding the Third Proportional to 13,631.75 and 19,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,631.75 : 19,997.50 = 19,997.50 : x
2. Step 2: Convert to fraction form
   13,631.75/19,997.50 = 19,997.50/x
3. Step 3: Cross multiply
   13,631.75x = 19,997.50 × 19,997.50
4. Step 4: Simplify right side
   13,631.75x = 399,900,006.25
5. Step 5: Solve for x
   x = 399,900,006.25/13,631.75
6. Step 6: Final answer
   x = 29,335.93