Finding the Third Proportional to 2,612,474,973 and 5,640,537,942

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612,474,973 : 5,640,537,942 = 5,640,537,942 : x
2. Step 2: Convert to fraction form
   2,612,474,973/5,640,537,942 = 5,640,537,942/x
3. Step 3: Cross multiply
   2,612,474,973x = 5,640,537,942 × 5,640,537,942
4. Step 4: Simplify right side
   2,612,474,973x = 31,815,668,275,141,595,136
5. Step 5: Solve for x
   x = 31,815,668,275,141,595,136/2,612,474,973
6. Step 6: Final answer
   x = 12,178,362,894.94