Finding the Third Proportional to 81,897.75 and 170,802

Step by Step Solution

1. Step 1: Write the proportion equation
   81,897.75 : 170,802 = 170,802 : x
2. Step 2: Convert to fraction form
   81,897.75/170,802 = 170,802/x
3. Step 3: Cross multiply
   81,897.75x = 170,802 × 170,802
4. Step 4: Simplify right side
   81,897.75x = 29,173,323,204
5. Step 5: Solve for x
   x = 29,173,323,204/81,897.75
6. Step 6: Final answer
   x = 356,216.42