Finding the Third Proportional to 118,848 and 280,476

Step by Step Solution

1. Step 1: Write the proportion equation
   118,848 : 280,476 = 280,476 : x
2. Step 2: Convert to fraction form
   118,848/280,476 = 280,476/x
3. Step 3: Cross multiply
   118,848x = 280,476 × 280,476
4. Step 4: Simplify right side
   118,848x = 78,666,786,576
5. Step 5: Solve for x
   x = 78,666,786,576/118,848
6. Step 6: Final answer
   x = 661,910.90