Finding the Third Proportional to 105,390 and 160,712

Step by Step Solution

1. Step 1: Write the proportion equation
   105,390 : 160,712 = 160,712 : x
2. Step 2: Convert to fraction form
   105,390/160,712 = 160,712/x
3. Step 3: Cross multiply
   105,390x = 160,712 × 160,712
4. Step 4: Simplify right side
   105,390x = 25,828,346,944
5. Step 5: Solve for x
   x = 25,828,346,944/105,390
6. Step 6: Final answer
   x = 245,073.98