Finding the Third Proportional to 5,381,436 and 7,864,954

Step by Step Solution

1. Step 1: Write the proportion equation
   5,381,436 : 7,864,954 = 7,864,954 : x
2. Step 2: Convert to fraction form
   5,381,436/7,864,954 = 7,864,954/x
3. Step 3: Cross multiply
   5,381,436x = 7,864,954 × 7,864,954
4. Step 4: Simplify right side
   5,381,436x = 61,857,501,422,116
5. Step 5: Solve for x
   x = 61,857,501,422,116/5,381,436
6. Step 6: Final answer
   x = 11,494,608.77