Finding the Third Proportional to 479,221,484 and 684,819,965

Step by Step Solution

1. Step 1: Write the proportion equation
   479,221,484 : 684,819,965 = 684,819,965 : x
2. Step 2: Convert to fraction form
   479,221,484/684,819,965 = 684,819,965/x
3. Step 3: Cross multiply
   479,221,484x = 684,819,965 × 684,819,965
4. Step 4: Simplify right side
   479,221,484x = 468,978,384,462,601,216
5. Step 5: Solve for x
   x = 468,978,384,462,601,216/479,221,484
6. Step 6: Final answer
   x = 978,625,541.89