Finding the Third Proportional to 5,313,942 and 8,459,643

Step by Step Solution

1. Step 1: Write the proportion equation
   5,313,942 : 8,459,643 = 8,459,643 : x
2. Step 2: Convert to fraction form
   5,313,942/8,459,643 = 8,459,643/x
3. Step 3: Cross multiply
   5,313,942x = 8,459,643 × 8,459,643
4. Step 4: Simplify right side
   5,313,942x = 71,565,559,687,449
5. Step 5: Solve for x
   x = 71,565,559,687,449/5,313,942
6. Step 6: Final answer
   x = 13,467,508.62