Finding the Third Proportional to 1,886,689 and 4,073,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886,689 : 4,073,728 = 4,073,728 : x
2. Step 2: Convert to fraction form
   1,886,689/4,073,728 = 4,073,728/x
3. Step 3: Cross multiply
   1,886,689x = 4,073,728 × 4,073,728
4. Step 4: Simplify right side
   1,886,689x = 16,595,259,817,984
5. Step 5: Solve for x
   x = 16,595,259,817,984/1,886,689
6. Step 6: Final answer
   x = 8,795,969.99