Finding the Third Proportional to 132,405.89 and 170,005.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,405.89 : 170,005.50 = 170,005.50 : x
2. Step 2: Convert to fraction form
   132,405.89/170,005.50 = 170,005.50/x
3. Step 3: Cross multiply
   132,405.89x = 170,005.50 × 170,005.50
4. Step 4: Simplify right side
   132,405.89x = 28,901,870,030.25
5. Step 5: Solve for x
   x = 28,901,870,030.25/132,405.89
6. Step 6: Final answer
   x = 218,282.36