Finding the Third Proportional to 14,870.25 and 20,391

Step by Step Solution

1. Step 1: Write the proportion equation
   14,870.25 : 20,391 = 20,391 : x
2. Step 2: Convert to fraction form
   14,870.25/20,391 = 20,391/x
3. Step 3: Cross multiply
   14,870.25x = 20,391 × 20,391
4. Step 4: Simplify right side
   14,870.25x = 415,792,881
5. Step 5: Solve for x
   x = 415,792,881/14,870.25
6. Step 6: Final answer
   x = 27,961.39