Finding the Third Proportional to 86,354 and 131,620

Step by Step Solution

1. Step 1: Write the proportion equation
   86,354 : 131,620 = 131,620 : x
2. Step 2: Convert to fraction form
   86,354/131,620 = 131,620/x
3. Step 3: Cross multiply
   86,354x = 131,620 × 131,620
4. Step 4: Simplify right side
   86,354x = 17,323,824,400
5. Step 5: Solve for x
   x = 17,323,824,400/86,354
6. Step 6: Final answer
   x = 200,614.04