Finding the Third Proportional to 55,233.56 and 86,405.06

Step by Step Solution

1. Step 1: Write the proportion equation
   55,233.56 : 86,405.06 = 86,405.06 : x
2. Step 2: Convert to fraction form
   55,233.56/86,405.06 = 86,405.06/x
3. Step 3: Cross multiply
   55,233.56x = 86,405.06 × 86,405.06
4. Step 4: Simplify right side
   55,233.56x = 7,465,834,825.63
5. Step 5: Solve for x
   x = 7,465,834,825.63/55,233.56
6. Step 6: Final answer
   x = 135,168.45