Finding the Third Proportional to 39,192.19 and 86,187.94

Step by Step Solution

1. Step 1: Write the proportion equation
   39,192.19 : 86,187.94 = 86,187.94 : x
2. Step 2: Convert to fraction form
   39,192.19/86,187.94 = 86,187.94/x
3. Step 3: Cross multiply
   39,192.19x = 86,187.94 × 86,187.94
4. Step 4: Simplify right side
   39,192.19x = 7,428,360,570.50
5. Step 5: Solve for x
   x = 7,428,360,570.50/39,192.19
6. Step 6: Final answer
   x = 189,536.77