Finding the Third Proportional to 116,518 and 254,835

Step by Step Solution

1. Step 1: Write the proportion equation
   116,518 : 254,835 = 254,835 : x
2. Step 2: Convert to fraction form
   116,518/254,835 = 254,835/x
3. Step 3: Cross multiply
   116,518x = 254,835 × 254,835
4. Step 4: Simplify right side
   116,518x = 64,940,877,225
5. Step 5: Solve for x
   x = 64,940,877,225/116,518
6. Step 6: Final answer
   x = 557,346.31