Finding the Third Proportional to 86,082 and 121,008.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,082 : 121,008.50 = 121,008.50 : x
2. Step 2: Convert to fraction form
   86,082/121,008.50 = 121,008.50/x
3. Step 3: Cross multiply
   86,082x = 121,008.50 × 121,008.50
4. Step 4: Simplify right side
   86,082x = 14,643,057,072.25
5. Step 5: Solve for x
   x = 14,643,057,072.25/86,082
6. Step 6: Final answer
   x = 170,105.91