Finding the Third Proportional to 479,221,308 and 684,819,738

Step by Step Solution

1. Step 1: Write the proportion equation
   479,221,308 : 684,819,738 = 684,819,738 : x
2. Step 2: Convert to fraction form
   479,221,308/684,819,738 = 684,819,738/x
3. Step 3: Cross multiply
   479,221,308x = 684,819,738 × 684,819,738
4. Step 4: Simplify right side
   479,221,308x = 468,978,073,554,388,672
5. Step 5: Solve for x
   x = 468,978,073,554,388,672/479,221,308
6. Step 6: Final answer
   x = 978,625,252.52