Finding the Third Proportional to 5,211,722 and 7,858,594

Step by Step Solution

1. Step 1: Write the proportion equation
   5,211,722 : 7,858,594 = 7,858,594 : x
2. Step 2: Convert to fraction form
   5,211,722/7,858,594 = 7,858,594/x
3. Step 3: Cross multiply
   5,211,722x = 7,858,594 × 7,858,594
4. Step 4: Simplify right side
   5,211,722x = 61,757,499,656,836
5. Step 5: Solve for x
   x = 61,757,499,656,836/5,211,722
6. Step 6: Final answer
   x = 11,849,730.22