Finding the Third Proportional to 89,250 and 128,961

Step by Step Solution

1. Step 1: Write the proportion equation
   89,250 : 128,961 = 128,961 : x
2. Step 2: Convert to fraction form
   89,250/128,961 = 128,961/x
3. Step 3: Cross multiply
   89,250x = 128,961 × 128,961
4. Step 4: Simplify right side
   89,250x = 16,630,939,521
5. Step 5: Solve for x
   x = 16,630,939,521/89,250
6. Step 6: Final answer
   x = 186,341.06