Finding the Third Proportional to 86,556 and 131,454

Step by Step Solution

1. Step 1: Write the proportion equation
   86,556 : 131,454 = 131,454 : x
2. Step 2: Convert to fraction form
   86,556/131,454 = 131,454/x
3. Step 3: Cross multiply
   86,556x = 131,454 × 131,454
4. Step 4: Simplify right side
   86,556x = 17,280,154,116
5. Step 5: Solve for x
   x = 17,280,154,116/86,556
6. Step 6: Final answer
   x = 199,641.32