Finding the Third Proportional to 1,919,697 and 4,200,979

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919,697 : 4,200,979 = 4,200,979 : x
2. Step 2: Convert to fraction form
   1,919,697/4,200,979 = 4,200,979/x
3. Step 3: Cross multiply
   1,919,697x = 4,200,979 × 4,200,979
4. Step 4: Simplify right side
   1,919,697x = 17,648,224,558,441
5. Step 5: Solve for x
   x = 17,648,224,558,441/1,919,697
6. Step 6: Final answer
   x = 9,193,234.43