Finding the Third Proportional to 285,059.50 and 619,735

Step by Step Solution

1. Step 1: Write the proportion equation
   285,059.50 : 619,735 = 619,735 : x
2. Step 2: Convert to fraction form
   285,059.50/619,735 = 619,735/x
3. Step 3: Cross multiply
   285,059.50x = 619,735 × 619,735
4. Step 4: Simplify right side
   285,059.50x = 384,071,470,225
5. Step 5: Solve for x
   x = 384,071,470,225/285,059.50
6. Step 6: Final answer
   x = 1,347,337.91