Finding the Third Proportional to 803,430 and 1,673,442

Step by Step Solution

1. Step 1: Write the proportion equation
   803,430 : 1,673,442 = 1,673,442 : x
2. Step 2: Convert to fraction form
   803,430/1,673,442 = 1,673,442/x
3. Step 3: Cross multiply
   803,430x = 1,673,442 × 1,673,442
4. Step 4: Simplify right side
   803,430x = 2,800,408,127,364
5. Step 5: Solve for x
   x = 2,800,408,127,364/803,430
6. Step 6: Final answer
   x = 3,485,565.80