Finding the Third Proportional to 81,631 and 179,300

Step by Step Solution

1. Step 1: Write the proportion equation
   81,631 : 179,300 = 179,300 : x
2. Step 2: Convert to fraction form
   81,631/179,300 = 179,300/x
3. Step 3: Cross multiply
   81,631x = 179,300 × 179,300
4. Step 4: Simplify right side
   81,631x = 32,148,490,000
5. Step 5: Solve for x
   x = 32,148,490,000/81,631
6. Step 6: Final answer
   x = 393,826.98