Finding the Third Proportional to 86,492.25 and 187,744.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,492.25 : 187,744.50 = 187,744.50 : x
2. Step 2: Convert to fraction form
   86,492.25/187,744.50 = 187,744.50/x
3. Step 3: Cross multiply
   86,492.25x = 187,744.50 × 187,744.50
4. Step 4: Simplify right side
   86,492.25x = 35,247,997,280.25
5. Step 5: Solve for x
   x = 35,247,997,280.25/86,492.25
6. Step 6: Final answer
   x = 407,527.81