Finding the Third Proportional to 2,920,613 and 6,391,792

Step by Step Solution

1. Step 1: Write the proportion equation
   2,920,613 : 6,391,792 = 6,391,792 : x
2. Step 2: Convert to fraction form
   2,920,613/6,391,792 = 6,391,792/x
3. Step 3: Cross multiply
   2,920,613x = 6,391,792 × 6,391,792
4. Step 4: Simplify right side
   2,920,613x = 40,855,004,971,264
5. Step 5: Solve for x
   x = 40,855,004,971,264/2,920,613
6. Step 6: Final answer
   x = 13,988,503.43