Finding the Third Proportional to 116,485.38 and 254,780

Step by Step Solution

1. Step 1: Write the proportion equation
   116,485.38 : 254,780 = 254,780 : x
2. Step 2: Convert to fraction form
   116,485.38/254,780 = 254,780/x
3. Step 3: Cross multiply
   116,485.38x = 254,780 × 254,780
4. Step 4: Simplify right side
   116,485.38x = 64,912,848,400
5. Step 5: Solve for x
   x = 64,912,848,400/116,485.38
6. Step 6: Final answer
   x = 557,261.79