Finding the Third Proportional to 57,684 and 86,994

Step by Step Solution

1. Step 1: Write the proportion equation
   57,684 : 86,994 = 86,994 : x
2. Step 2: Convert to fraction form
   57,684/86,994 = 86,994/x
3. Step 3: Cross multiply
   57,684x = 86,994 × 86,994
4. Step 4: Simplify right side
   57,684x = 7,567,956,036
5. Step 5: Solve for x
   x = 7,567,956,036/57,684
6. Step 6: Final answer
   x = 131,196.80