Finding the Third Proportional to 40,245.75 and 87,406.88

Step by Step Solution

1. Step 1: Write the proportion equation
   40,245.75 : 87,406.88 = 87,406.88 : x
2. Step 2: Convert to fraction form
   40,245.75/87,406.88 = 87,406.88/x
3. Step 3: Cross multiply
   40,245.75x = 87,406.88 × 87,406.88
4. Step 4: Simplify right side
   40,245.75x = 7,639,961,797.27
5. Step 5: Solve for x
   x = 7,639,961,797.27/40,245.75
6. Step 6: Final answer
   x = 189,832.76