Finding the Third Proportional to 609,370 and 1,336,890

Step by Step Solution

1. Step 1: Write the proportion equation
   609,370 : 1,336,890 = 1,336,890 : x
2. Step 2: Convert to fraction form
   609,370/1,336,890 = 1,336,890/x
3. Step 3: Cross multiply
   609,370x = 1,336,890 × 1,336,890
4. Step 4: Simplify right side
   609,370x = 1,787,274,872,100
5. Step 5: Solve for x
   x = 1,787,274,872,100/609,370
6. Step 6: Final answer
   x = 2,932,987.96