Finding the Third Proportional to 139,662 and 199,476

Step by Step Solution

1. Step 1: Write the proportion equation
   139,662 : 199,476 = 199,476 : x
2. Step 2: Convert to fraction form
   139,662/199,476 = 199,476/x
3. Step 3: Cross multiply
   139,662x = 199,476 × 199,476
4. Step 4: Simplify right side
   139,662x = 39,790,674,576
5. Step 5: Solve for x
   x = 39,790,674,576/139,662
6. Step 6: Final answer
   x = 284,906.95