Finding the Third Proportional to 1,378,856 and 2,140,460

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378,856 : 2,140,460 = 2,140,460 : x
2. Step 2: Convert to fraction form
   1,378,856/2,140,460 = 2,140,460/x
3. Step 3: Cross multiply
   1,378,856x = 2,140,460 × 2,140,460
4. Step 4: Simplify right side
   1,378,856x = 4,581,569,011,600
5. Step 5: Solve for x
   x = 4,581,569,011,600/1,378,856
6. Step 6: Final answer
   x = 3,322,732.04