Finding the Third Proportional to 2,643,612 and 4,201,620

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643,612 : 4,201,620 = 4,201,620 : x
2. Step 2: Convert to fraction form
   2,643,612/4,201,620 = 4,201,620/x
3. Step 3: Cross multiply
   2,643,612x = 4,201,620 × 4,201,620
4. Step 4: Simplify right side
   2,643,612x = 17,653,610,624,400
5. Step 5: Solve for x
   x = 17,653,610,624,400/2,643,612
6. Step 6: Final answer
   x = 6,677,837.23