Finding the Third Proportional to 85,900 and 131,412

Step by Step Solution

1. Step 1: Write the proportion equation
   85,900 : 131,412 = 131,412 : x
2. Step 2: Convert to fraction form
   85,900/131,412 = 131,412/x
3. Step 3: Cross multiply
   85,900x = 131,412 × 131,412
4. Step 4: Simplify right side
   85,900x = 17,269,113,744
5. Step 5: Solve for x
   x = 17,269,113,744/85,900
6. Step 6: Final answer
   x = 201,037.41