Finding the Third Proportional to 284,134.50 and 441,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,134.50 : 441,142.50 = 441,142.50 : x
2. Step 2: Convert to fraction form
   284,134.50/441,142.50 = 441,142.50/x
3. Step 3: Cross multiply
   284,134.50x = 441,142.50 × 441,142.50
4. Step 4: Simplify right side
   284,134.50x = 194,606,705,306.25
5. Step 5: Solve for x
   x = 194,606,705,306.25/284,134.50
6. Step 6: Final answer
   x = 684,910.51