Finding the Third Proportional to 1,584,434 and 3,421,374

Step by Step Solution

1. Step 1: Write the proportion equation
   1,584,434 : 3,421,374 = 3,421,374 : x
2. Step 2: Convert to fraction form
   1,584,434/3,421,374 = 3,421,374/x
3. Step 3: Cross multiply
   1,584,434x = 3,421,374 × 3,421,374
4. Step 4: Simplify right side
   1,584,434x = 11,705,800,047,876
5. Step 5: Solve for x
   x = 11,705,800,047,876/1,584,434
6. Step 6: Final answer
   x = 7,388,001.05