Finding the Third Proportional to 8,870 and 15,850

Step by Step Solution

1. Step 1: Write the proportion equation
   8,870 : 15,850 = 15,850 : x
2. Step 2: Convert to fraction form
   8,870/15,850 = 15,850/x
3. Step 3: Cross multiply
   8,870x = 15,850 × 15,850
4. Step 4: Simplify right side
   8,870x = 251,222,500
5. Step 5: Solve for x
   x = 251,222,500/8,870
6. Step 6: Final answer
   x = 28,322.72