Finding the Third Proportional to 86,484.50 and 189,364

Step by Step Solution

1. Step 1: Write the proportion equation
   86,484.50 : 189,364 = 189,364 : x
2. Step 2: Convert to fraction form
   86,484.50/189,364 = 189,364/x
3. Step 3: Cross multiply
   86,484.50x = 189,364 × 189,364
4. Step 4: Simplify right side
   86,484.50x = 35,858,724,496
5. Step 5: Solve for x
   x = 35,858,724,496/86,484.50
6. Step 6: Final answer
   x = 414,626.03