Finding the Third Proportional to 2,390,817 and 5,159,454

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390,817 : 5,159,454 = 5,159,454 : x
2. Step 2: Convert to fraction form
   2,390,817/5,159,454 = 5,159,454/x
3. Step 3: Cross multiply
   2,390,817x = 5,159,454 × 5,159,454
4. Step 4: Simplify right side
   2,390,817x = 26,619,965,578,116
5. Step 5: Solve for x
   x = 26,619,965,578,116/2,390,817
6. Step 6: Final answer
   x = 11,134,254.77