Finding the Third Proportional to 685,260 and 1,488,132

Step by Step Solution

1. Step 1: Write the proportion equation
   685,260 : 1,488,132 = 1,488,132 : x
2. Step 2: Convert to fraction form
   685,260/1,488,132 = 1,488,132/x
3. Step 3: Cross multiply
   685,260x = 1,488,132 × 1,488,132
4. Step 4: Simplify right side
   685,260x = 2,214,536,849,424
5. Step 5: Solve for x
   x = 2,214,536,849,424/685,260
6. Step 6: Final answer
   x = 3,231,673.89