Finding the Third Proportional to 1,609,909 and 2,178,668

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609,909 : 2,178,668 = 2,178,668 : x
2. Step 2: Convert to fraction form
   1,609,909/2,178,668 = 2,178,668/x
3. Step 3: Cross multiply
   1,609,909x = 2,178,668 × 2,178,668
4. Step 4: Simplify right side
   1,609,909x = 4,746,594,254,224
5. Step 5: Solve for x
   x = 4,746,594,254,224/1,609,909
6. Step 6: Final answer
   x = 2,948,361.84