Finding the Third Proportional to 5,430,405 and 8,051,682

Step by Step Solution

1. Step 1: Write the proportion equation
   5,430,405 : 8,051,682 = 8,051,682 : x
2. Step 2: Convert to fraction form
   5,430,405/8,051,682 = 8,051,682/x
3. Step 3: Cross multiply
   5,430,405x = 8,051,682 × 8,051,682
4. Step 4: Simplify right side
   5,430,405x = 64,829,583,029,124
5. Step 5: Solve for x
   x = 64,829,583,029,124/5,430,405
6. Step 6: Final answer
   x = 11,938,259.31