Finding the Third Proportional to 56,168.44 and 85,408.17

Step by Step Solution

1. Step 1: Write the proportion equation
   56,168.44 : 85,408.17 = 85,408.17 : x
2. Step 2: Convert to fraction form
   56,168.44/85,408.17 = 85,408.17/x
3. Step 3: Cross multiply
   56,168.44x = 85,408.17 × 85,408.17
4. Step 4: Simplify right side
   56,168.44x = 7,294,555,823.03
5. Step 5: Solve for x
   x = 7,294,555,823.03/56,168.44
6. Step 6: Final answer
   x = 129,869.30