Finding the Third Proportional to 16,395 and 38,490

Step by Step Solution

1. Step 1: Write the proportion equation
   16,395 : 38,490 = 38,490 : x
2. Step 2: Convert to fraction form
   16,395/38,490 = 38,490/x
3. Step 3: Cross multiply
   16,395x = 38,490 × 38,490
4. Step 4: Simplify right side
   16,395x = 1,481,480,100
5. Step 5: Solve for x
   x = 1,481,480,100/16,395
6. Step 6: Final answer
   x = 90,361.70