Finding the Third Proportional to 1,420,626 and 3,121,188

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420,626 : 3,121,188 = 3,121,188 : x
2. Step 2: Convert to fraction form
   1,420,626/3,121,188 = 3,121,188/x
3. Step 3: Cross multiply
   1,420,626x = 3,121,188 × 3,121,188
4. Step 4: Simplify right side
   1,420,626x = 9,741,814,531,344
5. Step 5: Solve for x
   x = 9,741,814,531,344/1,420,626
6. Step 6: Final answer
   x = 6,857,409.71