Finding the Third Proportional to 1,919,814 and 4,201,212

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919,814 : 4,201,212 = 4,201,212 : x
2. Step 2: Convert to fraction form
   1,919,814/4,201,212 = 4,201,212/x
3. Step 3: Cross multiply
   1,919,814x = 4,201,212 × 4,201,212
4. Step 4: Simplify right side
   1,919,814x = 17,650,182,268,944
5. Step 5: Solve for x
   x = 17,650,182,268,944/1,919,814
6. Step 6: Final answer
   x = 9,193,693.90