Finding the Third Proportional to 170,856 and 254,869.50

Step by Step Solution

1. Step 1: Write the proportion equation
   170,856 : 254,869.50 = 254,869.50 : x
2. Step 2: Convert to fraction form
   170,856/254,869.50 = 254,869.50/x
3. Step 3: Cross multiply
   170,856x = 254,869.50 × 254,869.50
4. Step 4: Simplify right side
   170,856x = 64,958,462,030.25
5. Step 5: Solve for x
   x = 64,958,462,030.25/170,856
6. Step 6: Final answer
   x = 380,194.21