Finding the Third Proportional to 86,434.59 and 187,082.16

Step by Step Solution

1. Step 1: Write the proportion equation
   86,434.59 : 187,082.16 = 187,082.16 : x
2. Step 2: Convert to fraction form
   86,434.59/187,082.16 = 187,082.16/x
3. Step 3: Cross multiply
   86,434.59x = 187,082.16 × 187,082.16
4. Step 4: Simplify right side
   86,434.59x = 34,999,733,187.15
5. Step 5: Solve for x
   x = 34,999,733,187.15/86,434.59
6. Step 6: Final answer
   x = 404,927.38