Finding the Third Proportional to 307,988,256 and 684,837,834

Step by Step Solution

1. Step 1: Write the proportion equation
   307,988,256 : 684,837,834 = 684,837,834 : x
2. Step 2: Convert to fraction form
   307,988,256/684,837,834 = 684,837,834/x
3. Step 3: Cross multiply
   307,988,256x = 684,837,834 × 684,837,834
4. Step 4: Simplify right side
   307,988,256x = 469,002,858,877,811,584
5. Step 5: Solve for x
   x = 469,002,858,877,811,584/307,988,256
6. Step 6: Final answer
   x = 1,522,794,618.76