Finding the Third Proportional to 686,782 and 1,010,310

Step by Step Solution

1. Step 1: Write the proportion equation
   686,782 : 1,010,310 = 1,010,310 : x
2. Step 2: Convert to fraction form
   686,782/1,010,310 = 1,010,310/x
3. Step 3: Cross multiply
   686,782x = 1,010,310 × 1,010,310
4. Step 4: Simplify right side
   686,782x = 1,020,726,296,100
5. Step 5: Solve for x
   x = 1,020,726,296,100/686,782
6. Step 6: Final answer
   x = 1,486,244.97