Finding the Third Proportional to 55,290 and 85,752

Step by Step Solution

1. Step 1: Write the proportion equation
   55,290 : 85,752 = 85,752 : x
2. Step 2: Convert to fraction form
   55,290/85,752 = 85,752/x
3. Step 3: Cross multiply
   55,290x = 85,752 × 85,752
4. Step 4: Simplify right side
   55,290x = 7,353,405,504
5. Step 5: Solve for x
   x = 7,353,405,504/55,290
6. Step 6: Final answer
   x = 132,997.02