Finding the Third Proportional to 1,330,340 and 2,918,206

Step by Step Solution

1. Step 1: Write the proportion equation
   1,330,340 : 2,918,206 = 2,918,206 : x
2. Step 2: Convert to fraction form
   1,330,340/2,918,206 = 2,918,206/x
3. Step 3: Cross multiply
   1,330,340x = 2,918,206 × 2,918,206
4. Step 4: Simplify right side
   1,330,340x = 8,515,926,258,436
5. Step 5: Solve for x
   x = 8,515,926,258,436/1,330,340
6. Step 6: Final answer
   x = 6,401,315.65