Finding the Third Proportional to 1,247,056 and 2,688,704

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247,056 : 2,688,704 = 2,688,704 : x
2. Step 2: Convert to fraction form
   1,247,056/2,688,704 = 2,688,704/x
3. Step 3: Cross multiply
   1,247,056x = 2,688,704 × 2,688,704
4. Step 4: Simplify right side
   1,247,056x = 7,229,129,199,616
5. Step 5: Solve for x
   x = 7,229,129,199,616/1,247,056
6. Step 6: Final answer
   x = 5,796,956.35