Finding the Third Proportional to 18,432.56 and 39,992.06

Step by Step Solution

1. Step 1: Write the proportion equation
   18,432.56 : 39,992.06 = 39,992.06 : x
2. Step 2: Convert to fraction form
   18,432.56/39,992.06 = 39,992.06/x
3. Step 3: Cross multiply
   18,432.56x = 39,992.06 × 39,992.06
4. Step 4: Simplify right side
   18,432.56x = 1,599,365,063.00
5. Step 5: Solve for x
   x = 1,599,365,063.00/18,432.56
6. Step 6: Final answer
   x = 86,768.46