Finding the Third Proportional to 1,036,807 and 1,555,211

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036,807 : 1,555,211 = 1,555,211 : x
2. Step 2: Convert to fraction form
   1,036,807/1,555,211 = 1,555,211/x
3. Step 3: Cross multiply
   1,036,807x = 1,555,211 × 1,555,211
4. Step 4: Simplify right side
   1,036,807x = 2,418,681,254,521
5. Step 5: Solve for x
   x = 2,418,681,254,521/1,036,807
6. Step 6: Final answer
   x = 2,332,817.25