Finding the Third Proportional to 664,584 and 1,423,668

Step by Step Solution

1. Step 1: Write the proportion equation
   664,584 : 1,423,668 = 1,423,668 : x
2. Step 2: Convert to fraction form
   664,584/1,423,668 = 1,423,668/x
3. Step 3: Cross multiply
   664,584x = 1,423,668 × 1,423,668
4. Step 4: Simplify right side
   664,584x = 2,026,830,574,224
5. Step 5: Solve for x
   x = 2,026,830,574,224/664,584
6. Step 6: Final answer
   x = 3,049,773.35