Finding the Third Proportional to 1,427,478 and 3,103,788

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427,478 : 3,103,788 = 3,103,788 : x
2. Step 2: Convert to fraction form
   1,427,478/3,103,788 = 3,103,788/x
3. Step 3: Cross multiply
   1,427,478x = 3,103,788 × 3,103,788
4. Step 4: Simplify right side
   1,427,478x = 9,633,499,948,944
5. Step 5: Solve for x
   x = 9,633,499,948,944/1,427,478
6. Step 6: Final answer
   x = 6,748,615.35