Finding the Third Proportional to 39,472.31 and 86,826.09

Step by Step Solution

1. Step 1: Write the proportion equation
   39,472.31 : 86,826.09 = 86,826.09 : x
2. Step 2: Convert to fraction form
   39,472.31/86,826.09 = 86,826.09/x
3. Step 3: Cross multiply
   39,472.31x = 86,826.09 × 86,826.09
4. Step 4: Simplify right side
   39,472.31x = 7,538,770,555.88
5. Step 5: Solve for x
   x = 7,538,770,555.88/39,472.31
6. Step 6: Final answer
   x = 190,988.82