Finding the Third Proportional to 5,313,940 and 8,459,636

Step by Step Solution

1. Step 1: Write the proportion equation
   5,313,940 : 8,459,636 = 8,459,636 : x
2. Step 2: Convert to fraction form
   5,313,940/8,459,636 = 8,459,636/x
3. Step 3: Cross multiply
   5,313,940x = 8,459,636 × 8,459,636
4. Step 4: Simplify right side
   5,313,940x = 71,565,441,252,496
5. Step 5: Solve for x
   x = 71,565,441,252,496/5,313,940
6. Step 6: Final answer
   x = 13,467,491.40