Finding the Third Proportional to 686,853 and 1,050,786

Step by Step Solution

1. Step 1: Write the proportion equation
   686,853 : 1,050,786 = 1,050,786 : x
2. Step 2: Convert to fraction form
   686,853/1,050,786 = 1,050,786/x
3. Step 3: Cross multiply
   686,853x = 1,050,786 × 1,050,786
4. Step 4: Simplify right side
   686,853x = 1,104,151,217,796
5. Step 5: Solve for x
   x = 1,104,151,217,796/686,853
6. Step 6: Final answer
   x = 1,607,550.99