Finding the Third Proportional to 89,428.50 and 186,201

Step by Step Solution

1. Step 1: Write the proportion equation
   89,428.50 : 186,201 = 186,201 : x
2. Step 2: Convert to fraction form
   89,428.50/186,201 = 186,201/x
3. Step 3: Cross multiply
   89,428.50x = 186,201 × 186,201
4. Step 4: Simplify right side
   89,428.50x = 34,670,812,401
5. Step 5: Solve for x
   x = 34,670,812,401/89,428.50
6. Step 6: Final answer
   x = 387,693.10