Finding the Third Proportional to 1,584,424 and 3,421,354

Step by Step Solution

1. Step 1: Write the proportion equation
   1,584,424 : 3,421,354 = 3,421,354 : x
2. Step 2: Convert to fraction form
   1,584,424/3,421,354 = 3,421,354/x
3. Step 3: Cross multiply
   1,584,424x = 3,421,354 × 3,421,354
4. Step 4: Simplify right side
   1,584,424x = 11,705,663,193,316
5. Step 5: Solve for x
   x = 11,705,663,193,316/1,584,424
6. Step 6: Final answer
   x = 7,387,961.30