Finding the Third Proportional to 57,809.25 and 86,322.38

Step by Step Solution

1. Step 1: Write the proportion equation
   57,809.25 : 86,322.38 = 86,322.38 : x
2. Step 2: Convert to fraction form
   57,809.25/86,322.38 = 86,322.38/x
3. Step 3: Cross multiply
   57,809.25x = 86,322.38 × 86,322.38
4. Step 4: Simplify right side
   57,809.25x = 7,451,552,425.64
5. Step 5: Solve for x
   x = 7,451,552,425.64/57,809.25
6. Step 6: Final answer
   x = 128,898.96