Finding the Third Proportional to 5,674,912 and 8,491,632

Step by Step Solution

1. Step 1: Write the proportion equation
   5,674,912 : 8,491,632 = 8,491,632 : x
2. Step 2: Convert to fraction form
   5,674,912/8,491,632 = 8,491,632/x
3. Step 3: Cross multiply
   5,674,912x = 8,491,632 × 8,491,632
4. Step 4: Simplify right side
   5,674,912x = 72,107,814,023,424
5. Step 5: Solve for x
   x = 72,107,814,023,424/5,674,912
6. Step 6: Final answer
   x = 12,706,419.77