Finding the Third Proportional to 16,380 and 25,210

Step by Step Solution

1. Step 1: Write the proportion equation
   16,380 : 25,210 = 25,210 : x
2. Step 2: Convert to fraction form
   16,380/25,210 = 25,210/x
3. Step 3: Cross multiply
   16,380x = 25,210 × 25,210
4. Step 4: Simplify right side
   16,380x = 635,544,100
5. Step 5: Solve for x
   x = 635,544,100/16,380
6. Step 6: Final answer
   x = 38,800.01