Finding the Third Proportional to 123,615 and 271,287

Step by Step Solution

1. Step 1: Write the proportion equation
   123,615 : 271,287 = 271,287 : x
2. Step 2: Convert to fraction form
   123,615/271,287 = 271,287/x
3. Step 3: Cross multiply
   123,615x = 271,287 × 271,287
4. Step 4: Simplify right side
   123,615x = 73,596,636,369
5. Step 5: Solve for x
   x = 73,596,636,369/123,615
6. Step 6: Final answer
   x = 595,369.79