Finding the Third Proportional to 389,426.50 and 841,133

Step by Step Solution

1. Step 1: Write the proportion equation
   389,426.50 : 841,133 = 841,133 : x
2. Step 2: Convert to fraction form
   389,426.50/841,133 = 841,133/x
3. Step 3: Cross multiply
   389,426.50x = 841,133 × 841,133
4. Step 4: Simplify right side
   389,426.50x = 707,504,723,689
5. Step 5: Solve for x
   x = 707,504,723,689/389,426.50
6. Step 6: Final answer
   x = 1,816,786.28