Finding the Third Proportional to 116,628 and 254,986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,628 : 254,986.50 = 254,986.50 : x
2. Step 2: Convert to fraction form
   116,628/254,986.50 = 254,986.50/x
3. Step 3: Cross multiply
   116,628x = 254,986.50 × 254,986.50
4. Step 4: Simplify right side
   116,628x = 65,018,115,182.25
5. Step 5: Solve for x
   x = 65,018,115,182.25/116,628
6. Step 6: Final answer
   x = 557,482.90