Finding the Third Proportional to 40,395.75 and 86,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,395.75 : 86,290.50 = 86,290.50 : x
2. Step 2: Convert to fraction form
   40,395.75/86,290.50 = 86,290.50/x
3. Step 3: Cross multiply
   40,395.75x = 86,290.50 × 86,290.50
4. Step 4: Simplify right side
   40,395.75x = 7,446,050,390.25
5. Step 5: Solve for x
   x = 7,446,050,390.25/40,395.75
6. Step 6: Final answer
   x = 184,327.57