Finding the Third Proportional to 5,791,839 and 7,857,156

Step by Step Solution

1. Step 1: Write the proportion equation
   5,791,839 : 7,857,156 = 7,857,156 : x
2. Step 2: Convert to fraction form
   5,791,839/7,857,156 = 7,857,156/x
3. Step 3: Cross multiply
   5,791,839x = 7,857,156 × 7,857,156
4. Step 4: Simplify right side
   5,791,839x = 61,734,900,408,336
5. Step 5: Solve for x
   x = 61,734,900,408,336/5,791,839
6. Step 6: Final answer
   x = 10,658,946.22