Finding the Third Proportional to 57,747 and 86,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,747 : 86,383.50 = 86,383.50 : x
2. Step 2: Convert to fraction form
   57,747/86,383.50 = 86,383.50/x
3. Step 3: Cross multiply
   57,747x = 86,383.50 × 86,383.50
4. Step 4: Simplify right side
   57,747x = 7,462,109,072.25
5. Step 5: Solve for x
   x = 7,462,109,072.25/57,747
6. Step 6: Final answer
   x = 129,220.72