Finding the Third Proportional to 2,223,990 and 4,526,658

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223,990 : 4,526,658 = 4,526,658 : x
2. Step 2: Convert to fraction form
   2,223,990/4,526,658 = 4,526,658/x
3. Step 3: Cross multiply
   2,223,990x = 4,526,658 × 4,526,658
4. Step 4: Simplify right side
   2,223,990x = 20,490,632,648,964
5. Step 5: Solve for x
   x = 20,490,632,648,964/2,223,990
6. Step 6: Final answer
   x = 9,213,455.39