Finding the Third Proportional to 12,875 and 28,211

Step by Step Solution

1. Step 1: Write the proportion equation
   12,875 : 28,211 = 28,211 : x
2. Step 2: Convert to fraction form
   12,875/28,211 = 28,211/x
3. Step 3: Cross multiply
   12,875x = 28,211 × 28,211
4. Step 4: Simplify right side
   12,875x = 795,860,521
5. Step 5: Solve for x
   x = 795,860,521/12,875
6. Step 6: Final answer
   x = 61,814.41