Finding the Third Proportional to 1,553,858 and 3,381,172

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553,858 : 3,381,172 = 3,381,172 : x
2. Step 2: Convert to fraction form
   1,553,858/3,381,172 = 3,381,172/x
3. Step 3: Cross multiply
   1,553,858x = 3,381,172 × 3,381,172
4. Step 4: Simplify right side
   1,553,858x = 11,432,324,093,584
5. Step 5: Solve for x
   x = 11,432,324,093,584/1,553,858
6. Step 6: Final answer
   x = 7,357,380.21