Finding the Third Proportional to 40,370.99 and 86,911.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40,370.99 : 86,911.42 = 86,911.42 : x
2. Step 2: Convert to fraction form
   40,370.99/86,911.42 = 86,911.42/x
3. Step 3: Cross multiply
   40,370.99x = 86,911.42 × 86,911.42
4. Step 4: Simplify right side
   40,370.99x = 7,553,594,573.34
5. Step 5: Solve for x
   x = 7,553,594,573.34/40,370.99
6. Step 6: Final answer
   x = 187,104.54