Finding the Third Proportional to 1,584,286 and 3,421,117

Step by Step Solution

1. Step 1: Write the proportion equation
   1,584,286 : 3,421,117 = 3,421,117 : x
2. Step 2: Convert to fraction form
   1,584,286/3,421,117 = 3,421,117/x
3. Step 3: Cross multiply
   1,584,286x = 3,421,117 × 3,421,117
4. Step 4: Simplify right side
   1,584,286x = 11,704,041,527,689
5. Step 5: Solve for x
   x = 11,704,041,527,689/1,584,286
6. Step 6: Final answer
   x = 7,387,581.24