Finding the Third Proportional to 5,430,416 and 8,051,686

Step by Step Solution

1. Step 1: Write the proportion equation
   5,430,416 : 8,051,686 = 8,051,686 : x
2. Step 2: Convert to fraction form
   5,430,416/8,051,686 = 8,051,686/x
3. Step 3: Cross multiply
   5,430,416x = 8,051,686 × 8,051,686
4. Step 4: Simplify right side
   5,430,416x = 64,829,647,442,596
5. Step 5: Solve for x
   x = 64,829,647,442,596/5,430,416
6. Step 6: Final answer
   x = 11,938,246.99