Finding the Third Proportional to 1,584,436 and 3,421,376

Step by Step Solution

1. Step 1: Write the proportion equation
   1,584,436 : 3,421,376 = 3,421,376 : x
2. Step 2: Convert to fraction form
   1,584,436/3,421,376 = 3,421,376/x
3. Step 3: Cross multiply
   1,584,436x = 3,421,376 × 3,421,376
4. Step 4: Simplify right side
   1,584,436x = 11,705,813,733,376
5. Step 5: Solve for x
   x = 11,705,813,733,376/1,584,436
6. Step 6: Final answer
   x = 7,388,000.36