Finding the Third Proportional to 1,954,518 and 4,243,260

Step by Step Solution

1. Step 1: Write the proportion equation
   1,954,518 : 4,243,260 = 4,243,260 : x
2. Step 2: Convert to fraction form
   1,954,518/4,243,260 = 4,243,260/x
3. Step 3: Cross multiply
   1,954,518x = 4,243,260 × 4,243,260
4. Step 4: Simplify right side
   1,954,518x = 18,005,255,427,600
5. Step 5: Solve for x
   x = 18,005,255,427,600/1,954,518
6. Step 6: Final answer
   x = 9,212,120.55