Finding the Third Proportional to 39,647.81 and 85,485.09

Step by Step Solution

1. Step 1: Write the proportion equation
   39,647.81 : 85,485.09 = 85,485.09 : x
2. Step 2: Convert to fraction form
   39,647.81/85,485.09 = 85,485.09/x
3. Step 3: Cross multiply
   39,647.81x = 85,485.09 × 85,485.09
4. Step 4: Simplify right side
   39,647.81x = 7,307,701,253.45
5. Step 5: Solve for x
   x = 7,307,701,253.45/39,647.81
6. Step 6: Final answer
   x = 184,315.37