Finding the Third Proportional to 686,857 and 1,488,050

Step by Step Solution

1. Step 1: Write the proportion equation
   686,857 : 1,488,050 = 1,488,050 : x
2. Step 2: Convert to fraction form
   686,857/1,488,050 = 1,488,050/x
3. Step 3: Cross multiply
   686,857x = 1,488,050 × 1,488,050
4. Step 4: Simplify right side
   686,857x = 2,214,292,802,500
5. Step 5: Solve for x
   x = 2,214,292,802,500/686,857
6. Step 6: Final answer
   x = 3,223,804.67