Finding the Third Proportional to 2,589,456 and 3,920,172

Step by Step Solution

1. Step 1: Write the proportion equation
   2,589,456 : 3,920,172 = 3,920,172 : x
2. Step 2: Convert to fraction form
   2,589,456/3,920,172 = 3,920,172/x
3. Step 3: Cross multiply
   2,589,456x = 3,920,172 × 3,920,172
4. Step 4: Simplify right side
   2,589,456x = 15,367,748,509,584
5. Step 5: Solve for x
   x = 15,367,748,509,584/2,589,456
6. Step 6: Final answer
   x = 5,934,740.16