Finding the Third Proportional to 2,543,660 and 5,390,584

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543,660 : 5,390,584 = 5,390,584 : x
2. Step 2: Convert to fraction form
   2,543,660/5,390,584 = 5,390,584/x
3. Step 3: Cross multiply
   2,543,660x = 5,390,584 × 5,390,584
4. Step 4: Simplify right side
   2,543,660x = 29,058,395,861,056
5. Step 5: Solve for x
   x = 29,058,395,861,056/2,543,660
6. Step 6: Final answer
   x = 11,423,852.19