Finding the Third Proportional to 116,487 and 254,783

Step by Step Solution

1. Step 1: Write the proportion equation
   116,487 : 254,783 = 254,783 : x
2. Step 2: Convert to fraction form
   116,487/254,783 = 254,783/x
3. Step 3: Cross multiply
   116,487x = 254,783 × 254,783
4. Step 4: Simplify right side
   116,487x = 64,914,377,089
5. Step 5: Solve for x
   x = 64,914,377,089/116,487
6. Step 6: Final answer
   x = 557,267.14