Finding the Third Proportional to 790,919 and 1,866,287

Step by Step Solution

1. Step 1: Write the proportion equation
   790,919 : 1,866,287 = 1,866,287 : x
2. Step 2: Convert to fraction form
   790,919/1,866,287 = 1,866,287/x
3. Step 3: Cross multiply
   790,919x = 1,866,287 × 1,866,287
4. Step 4: Simplify right side
   790,919x = 3,483,027,166,369
5. Step 5: Solve for x
   x = 3,483,027,166,369/790,919
6. Step 6: Final answer
   x = 4,403,772.28