Finding the Third Proportional to 606,920 and 1,329,940

Step by Step Solution

1. Step 1: Write the proportion equation
   606,920 : 1,329,940 = 1,329,940 : x
2. Step 2: Convert to fraction form
   606,920/1,329,940 = 1,329,940/x
3. Step 3: Cross multiply
   606,920x = 1,329,940 × 1,329,940
4. Step 4: Simplify right side
   606,920x = 1,768,740,403,600
5. Step 5: Solve for x
   x = 1,768,740,403,600/606,920
6. Step 6: Final answer
   x = 2,914,289.20