Finding the Third Proportional to 116,474.50 and 254,758.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,474.50 : 254,758.50 = 254,758.50 : x
2. Step 2: Convert to fraction form
   116,474.50/254,758.50 = 254,758.50/x
3. Step 3: Cross multiply
   116,474.50x = 254,758.50 × 254,758.50
4. Step 4: Simplify right side
   116,474.50x = 64,901,893,322.25
5. Step 5: Solve for x
   x = 64,901,893,322.25/116,474.50
6. Step 6: Final answer
   x = 557,219.76