Finding the Third Proportional to 2,409,478 and 5,238,859

Step by Step Solution

1. Step 1: Write the proportion equation
   2,409,478 : 5,238,859 = 5,238,859 : x
2. Step 2: Convert to fraction form
   2,409,478/5,238,859 = 5,238,859/x
3. Step 3: Cross multiply
   2,409,478x = 5,238,859 × 5,238,859
4. Step 4: Simplify right side
   2,409,478x = 27,445,643,621,881
5. Step 5: Solve for x
   x = 27,445,643,621,881/2,409,478
6. Step 6: Final answer
   x = 11,390,701.07