Finding the Third Proportional to 86,010.19 and 112,399.31

Step by Step Solution

1. Step 1: Write the proportion equation
   86,010.19 : 112,399.31 = 112,399.31 : x
2. Step 2: Convert to fraction form
   86,010.19/112,399.31 = 112,399.31/x
3. Step 3: Cross multiply
   86,010.19x = 112,399.31 × 112,399.31
4. Step 4: Simplify right side
   86,010.19x = 12,633,605,450.47
5. Step 5: Solve for x
   x = 12,633,605,450.47/86,010.19
6. Step 6: Final answer
   x = 146,884.99