Finding the Third Proportional to 1,247,024 and 2,688,634

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247,024 : 2,688,634 = 2,688,634 : x
2. Step 2: Convert to fraction form
   1,247,024/2,688,634 = 2,688,634/x
3. Step 3: Cross multiply
   1,247,024x = 2,688,634 × 2,688,634
4. Step 4: Simplify right side
   1,247,024x = 7,228,752,785,956
5. Step 5: Solve for x
   x = 7,228,752,785,956/1,247,024
6. Step 6: Final answer
   x = 5,796,803.26