Finding the Third Proportional to 118,494 and 253,665

Step by Step Solution

1. Step 1: Write the proportion equation
   118,494 : 253,665 = 253,665 : x
2. Step 2: Convert to fraction form
   118,494/253,665 = 253,665/x
3. Step 3: Cross multiply
   118,494x = 253,665 × 253,665
4. Step 4: Simplify right side
   118,494x = 64,345,932,225
5. Step 5: Solve for x
   x = 64,345,932,225/118,494
6. Step 6: Final answer
   x = 543,031.14