Finding the Third Proportional to 201,601.50 and 423,885

Step by Step Solution

1. Step 1: Write the proportion equation
   201,601.50 : 423,885 = 423,885 : x
2. Step 2: Convert to fraction form
   201,601.50/423,885 = 423,885/x
3. Step 3: Cross multiply
   201,601.50x = 423,885 × 423,885
4. Step 4: Simplify right side
   201,601.50x = 179,678,493,225
5. Step 5: Solve for x
   x = 179,678,493,225/201,601.50
6. Step 6: Final answer
   x = 891,255.74