Finding the Third Proportional to 2,179,890 and 3,402,274

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179,890 : 3,402,274 = 3,402,274 : x
2. Step 2: Convert to fraction form
   2,179,890/3,402,274 = 3,402,274/x
3. Step 3: Cross multiply
   2,179,890x = 3,402,274 × 3,402,274
4. Step 4: Simplify right side
   2,179,890x = 11,575,468,371,076
5. Step 5: Solve for x
   x = 11,575,468,371,076/2,179,890
6. Step 6: Final answer
   x = 5,310,115.82