Finding the Third Proportional to 89,967 and 128,160

Step by Step Solution

1. Step 1: Write the proportion equation
   89,967 : 128,160 = 128,160 : x
2. Step 2: Convert to fraction form
   89,967/128,160 = 128,160/x
3. Step 3: Cross multiply
   89,967x = 128,160 × 128,160
4. Step 4: Simplify right side
   89,967x = 16,424,985,600
5. Step 5: Solve for x
   x = 16,424,985,600/89,967
6. Step 6: Final answer
   x = 182,566.78