Finding the Third Proportional to 2,189,506 and 3,486,643

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189,506 : 3,486,643 = 3,486,643 : x
2. Step 2: Convert to fraction form
   2,189,506/3,486,643 = 3,486,643/x
3. Step 3: Cross multiply
   2,189,506x = 3,486,643 × 3,486,643
4. Step 4: Simplify right side
   2,189,506x = 12,156,679,409,449
5. Step 5: Solve for x
   x = 12,156,679,409,449/2,189,506
6. Step 6: Final answer
   x = 5,552,247.59