Finding the Third Proportional to 81,985.50 and 170,964

Step by Step Solution

1. Step 1: Write the proportion equation
   81,985.50 : 170,964 = 170,964 : x
2. Step 2: Convert to fraction form
   81,985.50/170,964 = 170,964/x
3. Step 3: Cross multiply
   81,985.50x = 170,964 × 170,964
4. Step 4: Simplify right side
   81,985.50x = 29,228,689,296
5. Step 5: Solve for x
   x = 29,228,689,296/81,985.50
6. Step 6: Final answer
   x = 356,510.47