Finding the Third Proportional to 40,394.75 and 86,405.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,394.75 : 86,405.50 = 86,405.50 : x
2. Step 2: Convert to fraction form
   40,394.75/86,405.50 = 86,405.50/x
3. Step 3: Cross multiply
   40,394.75x = 86,405.50 × 86,405.50
4. Step 4: Simplify right side
   40,394.75x = 7,465,910,430.25
5. Step 5: Solve for x
   x = 7,465,910,430.25/40,394.75
6. Step 6: Final answer
   x = 184,823.78