Finding the Third Proportional to 105,456 and 143,160

Step by Step Solution

1. Step 1: Write the proportion equation
   105,456 : 143,160 = 143,160 : x
2. Step 2: Convert to fraction form
   105,456/143,160 = 143,160/x
3. Step 3: Cross multiply
   105,456x = 143,160 × 143,160
4. Step 4: Simplify right side
   105,456x = 20,494,785,600
5. Step 5: Solve for x
   x = 20,494,785,600/105,456
6. Step 6: Final answer
   x = 194,344.42