Finding the Third Proportional to 40,245.75 and 87,411.38

Step by Step Solution

1. Step 1: Write the proportion equation
   40,245.75 : 87,411.38 = 87,411.38 : x
2. Step 2: Convert to fraction form
   40,245.75/87,411.38 = 87,411.38/x
3. Step 3: Cross multiply
   40,245.75x = 87,411.38 × 87,411.38
4. Step 4: Simplify right side
   40,245.75x = 7,640,748,479.39
5. Step 5: Solve for x
   x = 7,640,748,479.39/40,245.75
6. Step 6: Final answer
   x = 189,852.31