Finding the Third Proportional to 287,106,844 and 629,793,620

Step by Step Solution

1. Step 1: Write the proportion equation
   287,106,844 : 629,793,620 = 629,793,620 : x
2. Step 2: Convert to fraction form
   287,106,844/629,793,620 = 629,793,620/x
3. Step 3: Cross multiply
   287,106,844x = 629,793,620 × 629,793,620
4. Step 4: Simplify right side
   287,106,844x = 396,640,003,792,704,384
5. Step 5: Solve for x
   x = 396,640,003,792,704,384/287,106,844
6. Step 6: Final answer
   x = 1,381,506,613.59