Finding the Third Proportional to 5,280,369 and 8,392,986

Step by Step Solution

1. Step 1: Write the proportion equation
   5,280,369 : 8,392,986 = 8,392,986 : x
2. Step 2: Convert to fraction form
   5,280,369/8,392,986 = 8,392,986/x
3. Step 3: Cross multiply
   5,280,369x = 8,392,986 × 8,392,986
4. Step 4: Simplify right side
   5,280,369x = 70,442,213,996,196
5. Step 5: Solve for x
   x = 70,442,213,996,196/5,280,369
6. Step 6: Final answer
   x = 13,340,396.10