Finding the Third Proportional to 40,922.72 and 90,449.16

Step by Step Solution

1. Step 1: Write the proportion equation
   40,922.72 : 90,449.16 = 90,449.16 : x
2. Step 2: Convert to fraction form
   40,922.72/90,449.16 = 90,449.16/x
3. Step 3: Cross multiply
   40,922.72x = 90,449.16 × 90,449.16
4. Step 4: Simplify right side
   40,922.72x = 8,181,049,866.34
5. Step 5: Solve for x
   x = 8,181,049,866.34/40,922.72
6. Step 6: Final answer
   x = 199,914.62