Finding the Third Proportional to 688,886 and 1,012,916

Step by Step Solution

1. Step 1: Write the proportion equation
   688,886 : 1,012,916 = 1,012,916 : x
2. Step 2: Convert to fraction form
   688,886/1,012,916 = 1,012,916/x
3. Step 3: Cross multiply
   688,886x = 1,012,916 × 1,012,916
4. Step 4: Simplify right side
   688,886x = 1,025,998,823,056
5. Step 5: Solve for x
   x = 1,025,998,823,056/688,886
6. Step 6: Final answer
   x = 1,489,359.38