Finding the Third Proportional to 606,940 and 1,329,980

Step by Step Solution

1. Step 1: Write the proportion equation
   606,940 : 1,329,980 = 1,329,980 : x
2. Step 2: Convert to fraction form
   606,940/1,329,980 = 1,329,980/x
3. Step 3: Cross multiply
   606,940x = 1,329,980 × 1,329,980
4. Step 4: Simplify right side
   606,940x = 1,768,846,800,400
5. Step 5: Solve for x
   x = 1,768,846,800,400/606,940
6. Step 6: Final answer
   x = 2,914,368.47