Finding the Third Proportional to 5,581,653 and 8,405,151

Step by Step Solution

1. Step 1: Write the proportion equation
   5,581,653 : 8,405,151 = 8,405,151 : x
2. Step 2: Convert to fraction form
   5,581,653/8,405,151 = 8,405,151/x
3. Step 3: Cross multiply
   5,581,653x = 8,405,151 × 8,405,151
4. Step 4: Simplify right side
   5,581,653x = 70,646,563,332,801
5. Step 5: Solve for x
   x = 70,646,563,332,801/5,581,653
6. Step 6: Final answer
   x = 12,656,924.99