Finding the Third Proportional to 55,768.50 and 86,751

Step by Step Solution

1. Step 1: Write the proportion equation
   55,768.50 : 86,751 = 86,751 : x
2. Step 2: Convert to fraction form
   55,768.50/86,751 = 86,751/x
3. Step 3: Cross multiply
   55,768.50x = 86,751 × 86,751
4. Step 4: Simplify right side
   55,768.50x = 7,525,736,001
5. Step 5: Solve for x
   x = 7,525,736,001/55,768.50
6. Step 6: Final answer
   x = 134,946