Finding the Third Proportional to 88,398 and 132,669

Step by Step Solution

1. Step 1: Write the proportion equation
   88,398 : 132,669 = 132,669 : x
2. Step 2: Convert to fraction form
   88,398/132,669 = 132,669/x
3. Step 3: Cross multiply
   88,398x = 132,669 × 132,669
4. Step 4: Simplify right side
   88,398x = 17,601,063,561
5. Step 5: Solve for x
   x = 17,601,063,561/88,398
6. Step 6: Final answer
   x = 199,111.56