Finding the Third Proportional to 57,786 and 88,698

Step by Step Solution

1. Step 1: Write the proportion equation
   57,786 : 88,698 = 88,698 : x
2. Step 2: Convert to fraction form
   57,786/88,698 = 88,698/x
3. Step 3: Cross multiply
   57,786x = 88,698 × 88,698
4. Step 4: Simplify right side
   57,786x = 7,867,335,204
5. Step 5: Solve for x
   x = 7,867,335,204/57,786
6. Step 6: Final answer
   x = 136,146.04