Finding the Third Proportional to 81,652.69 and 166,585.31

Step by Step Solution

1. Step 1: Write the proportion equation
   81,652.69 : 166,585.31 = 166,585.31 : x
2. Step 2: Convert to fraction form
   81,652.69/166,585.31 = 166,585.31/x
3. Step 3: Cross multiply
   81,652.69x = 166,585.31 × 166,585.31
4. Step 4: Simplify right side
   81,652.69x = 27,750,666,340.72
5. Step 5: Solve for x
   x = 27,750,666,340.72/81,652.69
6. Step 6: Final answer
   x = 339,862.25