Finding the Third Proportional to 1,429,628 and 3,143,560

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429,628 : 3,143,560 = 3,143,560 : x
2. Step 2: Convert to fraction form
   1,429,628/3,143,560 = 3,143,560/x
3. Step 3: Cross multiply
   1,429,628x = 3,143,560 × 3,143,560
4. Step 4: Simplify right side
   1,429,628x = 9,881,969,473,600
5. Step 5: Solve for x
   x = 9,881,969,473,600/1,429,628
6. Step 6: Final answer
   x = 6,912,266.32