Finding the Third Proportional to 411,846 and 843,760.50

Step by Step Solution

1. Step 1: Write the proportion equation
   411,846 : 843,760.50 = 843,760.50 : x
2. Step 2: Convert to fraction form
   411,846/843,760.50 = 843,760.50/x
3. Step 3: Cross multiply
   411,846x = 843,760.50 × 843,760.50
4. Step 4: Simplify right side
   411,846x = 711,931,781,360.25
5. Step 5: Solve for x
   x = 711,931,781,360.25/411,846
6. Step 6: Final answer
   x = 1,728,635.90