Finding the Third Proportional to 2,543,655 and 5,390,574

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543,655 : 5,390,574 = 5,390,574 : x
2. Step 2: Convert to fraction form
   2,543,655/5,390,574 = 5,390,574/x
3. Step 3: Cross multiply
   2,543,655x = 5,390,574 × 5,390,574
4. Step 4: Simplify right side
   2,543,655x = 29,058,288,049,476
5. Step 5: Solve for x
   x = 29,058,288,049,476/2,543,655
6. Step 6: Final answer
   x = 11,423,832.26