Finding the Third Proportional to 1,339,416 and 2,891,280

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339,416 : 2,891,280 = 2,891,280 : x
2. Step 2: Convert to fraction form
   1,339,416/2,891,280 = 2,891,280/x
3. Step 3: Cross multiply
   1,339,416x = 2,891,280 × 2,891,280
4. Step 4: Simplify right side
   1,339,416x = 8,359,500,038,400
5. Step 5: Solve for x
   x = 8,359,500,038,400/1,339,416
6. Step 6: Final answer
   x = 6,241,152.89