Finding the Third Proportional to 673,540 and 1,430,120

Step by Step Solution

1. Step 1: Write the proportion equation
   673,540 : 1,430,120 = 1,430,120 : x
2. Step 2: Convert to fraction form
   673,540/1,430,120 = 1,430,120/x
3. Step 3: Cross multiply
   673,540x = 1,430,120 × 1,430,120
4. Step 4: Simplify right side
   673,540x = 2,045,243,214,400
5. Step 5: Solve for x
   x = 2,045,243,214,400/673,540
6. Step 6: Final answer
   x = 3,036,557.91