Finding the Third Proportional to 42,252.75 and 85,672.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42,252.75 : 85,672.22 = 85,672.22 : x
2. Step 2: Convert to fraction form
   42,252.75/85,672.22 = 85,672.22/x
3. Step 3: Cross multiply
   42,252.75x = 85,672.22 × 85,672.22
4. Step 4: Simplify right side
   42,252.75x = 7,339,729,065.55
5. Step 5: Solve for x
   x = 7,339,729,065.55/42,252.75
6. Step 6: Final answer
   x = 173,710.09