Finding the Third Proportional to 116,505 and 254,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,505 : 254,815.50 = 254,815.50 : x
2. Step 2: Convert to fraction form
   116,505/254,815.50 = 254,815.50/x
3. Step 3: Cross multiply
   116,505x = 254,815.50 × 254,815.50
4. Step 4: Simplify right side
   116,505x = 64,930,939,040.25
5. Step 5: Solve for x
   x = 64,930,939,040.25/116,505
6. Step 6: Final answer
   x = 557,323.20