Finding the Third Proportional to 686,886 and 1,050,726

Step by Step Solution

1. Step 1: Write the proportion equation
   686,886 : 1,050,726 = 1,050,726 : x
2. Step 2: Convert to fraction form
   686,886/1,050,726 = 1,050,726/x
3. Step 3: Cross multiply
   686,886x = 1,050,726 × 1,050,726
4. Step 4: Simplify right side
   686,886x = 1,104,025,127,076
5. Step 5: Solve for x
   x = 1,104,025,127,076/686,886
6. Step 6: Final answer
   x = 1,607,290.19