Finding the Third Proportional to 40,245.61 and 87,411.23

Step by Step Solution

1. Step 1: Write the proportion equation
   40,245.61 : 87,411.23 = 87,411.23 : x
2. Step 2: Convert to fraction form
   40,245.61/87,411.23 = 87,411.23/x
3. Step 3: Cross multiply
   40,245.61x = 87,411.23 × 87,411.23
4. Step 4: Simplify right side
   40,245.61x = 7,640,723,894.96
5. Step 5: Solve for x
   x = 7,640,723,894.96/40,245.61
6. Step 6: Final answer
   x = 189,852.36