Finding the Third Proportional to 66,556.69 and 146,017.69

Step by Step Solution

1. Step 1: Write the proportion equation
   66,556.69 : 146,017.69 = 146,017.69 : x
2. Step 2: Convert to fraction form
   66,556.69/146,017.69 = 146,017.69/x
3. Step 3: Cross multiply
   66,556.69x = 146,017.69 × 146,017.69
4. Step 4: Simplify right side
   66,556.69x = 21,321,165,062.85
5. Step 5: Solve for x
   x = 21,321,165,062.85/66,556.69
6. Step 6: Final answer
   x = 320,345.95