Finding the Third Proportional to 394,092 and 819,637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,092 : 819,637.50 = 819,637.50 : x
2. Step 2: Convert to fraction form
   394,092/819,637.50 = 819,637.50/x
3. Step 3: Cross multiply
   394,092x = 819,637.50 × 819,637.50
4. Step 4: Simplify right side
   394,092x = 671,805,631,406.25
5. Step 5: Solve for x
   x = 671,805,631,406.25/394,092
6. Step 6: Final answer
   x = 1,704,692.39