Finding the Third Proportional to 389,670.50 and 838,524.50

Step by Step Solution

1. Step 1: Write the proportion equation
   389,670.50 : 838,524.50 = 838,524.50 : x
2. Step 2: Convert to fraction form
   389,670.50/838,524.50 = 838,524.50/x
3. Step 3: Cross multiply
   389,670.50x = 838,524.50 × 838,524.50
4. Step 4: Simplify right side
   389,670.50x = 703,123,337,100.25
5. Step 5: Solve for x
   x = 703,123,337,100.25/389,670.50
6. Step 6: Final answer
   x = 1,804,404.84