Finding the Third Proportional to 606,310 and 1,320,260

Step by Step Solution

1. Step 1: Write the proportion equation
   606,310 : 1,320,260 = 1,320,260 : x
2. Step 2: Convert to fraction form
   606,310/1,320,260 = 1,320,260/x
3. Step 3: Cross multiply
   606,310x = 1,320,260 × 1,320,260
4. Step 4: Simplify right side
   606,310x = 1,743,086,467,600
5. Step 5: Solve for x
   x = 1,743,086,467,600/606,310
6. Step 6: Final answer
   x = 2,874,909.65