Finding the Third Proportional to 633,580 and 1,378,698

Step by Step Solution

1. Step 1: Write the proportion equation
   633,580 : 1,378,698 = 1,378,698 : x
2. Step 2: Convert to fraction form
   633,580/1,378,698 = 1,378,698/x
3. Step 3: Cross multiply
   633,580x = 1,378,698 × 1,378,698
4. Step 4: Simplify right side
   633,580x = 1,900,808,175,204
5. Step 5: Solve for x
   x = 1,900,808,175,204/633,580
6. Step 6: Final answer
   x = 3,000,107.60