Finding the Third Proportional to 57,753.19 and 86,394.75

Step by Step Solution

1. Step 1: Write the proportion equation
   57,753.19 : 86,394.75 = 86,394.75 : x
2. Step 2: Convert to fraction form
   57,753.19/86,394.75 = 86,394.75/x
3. Step 3: Cross multiply
   57,753.19x = 86,394.75 × 86,394.75
4. Step 4: Simplify right side
   57,753.19x = 7,464,052,827.56
5. Step 5: Solve for x
   x = 7,464,052,827.56/57,753.19
6. Step 6: Final answer
   x = 129,240.53