Finding the Third Proportional to 57,719.25 and 86,747.63

Step by Step Solution

1. Step 1: Write the proportion equation
   57,719.25 : 86,747.63 = 86,747.63 : x
2. Step 2: Convert to fraction form
   57,719.25/86,747.63 = 86,747.63/x
3. Step 3: Cross multiply
   57,719.25x = 86,747.63 × 86,747.63
4. Step 4: Simplify right side
   57,719.25x = 7,525,150,443.14
5. Step 5: Solve for x
   x = 7,525,150,443.14/57,719.25
6. Step 6: Final answer
   x = 130,375.06