Finding the Third Proportional to 36,439.88 and 87,707.81

Step by Step Solution

1. Step 1: Write the proportion equation
   36,439.88 : 87,707.81 = 87,707.81 : x
2. Step 2: Convert to fraction form
   36,439.88/87,707.81 = 87,707.81/x
3. Step 3: Cross multiply
   36,439.88x = 87,707.81 × 87,707.81
4. Step 4: Simplify right side
   36,439.88x = 7,692,660,373.54
5. Step 5: Solve for x
   x = 7,692,660,373.54/36,439.88
6. Step 6: Final answer
   x = 211,105.56