Finding the Third Proportional to 40,422.48 and 85,034.81

Step by Step Solution

1. Step 1: Write the proportion equation
   40,422.48 : 85,034.81 = 85,034.81 : x
2. Step 2: Convert to fraction form
   40,422.48/85,034.81 = 85,034.81/x
3. Step 3: Cross multiply
   40,422.48x = 85,034.81 × 85,034.81
4. Step 4: Simplify right side
   40,422.48x = 7,230,919,336.91
5. Step 5: Solve for x
   x = 7,230,919,336.91/40,422.48
6. Step 6: Final answer
   x = 178,883.61