Finding the Third Proportional to 103,984.50 and 212,885

Step by Step Solution

1. Step 1: Write the proportion equation
   103,984.50 : 212,885 = 212,885 : x
2. Step 2: Convert to fraction form
   103,984.50/212,885 = 212,885/x
3. Step 3: Cross multiply
   103,984.50x = 212,885 × 212,885
4. Step 4: Simplify right side
   103,984.50x = 45,320,023,225
5. Step 5: Solve for x
   x = 45,320,023,225/103,984.50
6. Step 6: Final answer
   x = 435,834.41