Finding the Third Proportional to 55,449 and 85,230

Step by Step Solution

1. Step 1: Write the proportion equation
   55,449 : 85,230 = 85,230 : x
2. Step 2: Convert to fraction form
   55,449/85,230 = 85,230/x
3. Step 3: Cross multiply
   55,449x = 85,230 × 85,230
4. Step 4: Simplify right side
   55,449x = 7,264,152,900
5. Step 5: Solve for x
   x = 7,264,152,900/55,449
6. Step 6: Final answer
   x = 131,006.02