Finding the Third Proportional to 1,584,412 and 3,421,346

Step by Step Solution

1. Step 1: Write the proportion equation
   1,584,412 : 3,421,346 = 3,421,346 : x
2. Step 2: Convert to fraction form
   1,584,412/3,421,346 = 3,421,346/x
3. Step 3: Cross multiply
   1,584,412x = 3,421,346 × 3,421,346
4. Step 4: Simplify right side
   1,584,412x = 11,705,608,451,716
5. Step 5: Solve for x
   x = 11,705,608,451,716/1,584,412
6. Step 6: Final answer
   x = 7,387,982.70