Finding the Third Proportional to 1,439,685 and 3,150,558

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439,685 : 3,150,558 = 3,150,558 : x
2. Step 2: Convert to fraction form
   1,439,685/3,150,558 = 3,150,558/x
3. Step 3: Cross multiply
   1,439,685x = 3,150,558 × 3,150,558
4. Step 4: Simplify right side
   1,439,685x = 9,926,015,711,364
5. Step 5: Solve for x
   x = 9,926,015,711,364/1,439,685
6. Step 6: Final answer
   x = 6,894,574.65