Finding the Third Proportional to 19,987 and 28,875.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,987 : 28,875.50 = 28,875.50 : x
2. Step 2: Convert to fraction form
   19,987/28,875.50 = 28,875.50/x
3. Step 3: Cross multiply
   19,987x = 28,875.50 × 28,875.50
4. Step 4: Simplify right side
   19,987x = 833,794,500.25
5. Step 5: Solve for x
   x = 833,794,500.25/19,987
6. Step 6: Final answer
   x = 41,716.84