Finding the Third Proportional to 105,390 and 160,711

Step by Step Solution

1. Step 1: Write the proportion equation
   105,390 : 160,711 = 160,711 : x
2. Step 2: Convert to fraction form
   105,390/160,711 = 160,711/x
3. Step 3: Cross multiply
   105,390x = 160,711 × 160,711
4. Step 4: Simplify right side
   105,390x = 25,828,025,521
5. Step 5: Solve for x
   x = 25,828,025,521/105,390
6. Step 6: Final answer
   x = 245,070.93