Finding the Third Proportional to 40,245.50 and 87,410.75

Step by Step Solution

1. Step 1: Write the proportion equation
   40,245.50 : 87,410.75 = 87,410.75 : x
2. Step 2: Convert to fraction form
   40,245.50/87,410.75 = 87,410.75/x
3. Step 3: Cross multiply
   40,245.50x = 87,410.75 × 87,410.75
4. Step 4: Simplify right side
   40,245.50x = 7,640,639,215.56
5. Step 5: Solve for x
   x = 7,640,639,215.56/40,245.50
6. Step 6: Final answer
   x = 189,850.77