Finding the Third Proportional to 905,426 and 1,918,786

Step by Step Solution

1. Step 1: Write the proportion equation
   905,426 : 1,918,786 = 1,918,786 : x
2. Step 2: Convert to fraction form
   905,426/1,918,786 = 1,918,786/x
3. Step 3: Cross multiply
   905,426x = 1,918,786 × 1,918,786
4. Step 4: Simplify right side
   905,426x = 3,681,739,713,796
5. Step 5: Solve for x
   x = 3,681,739,713,796/905,426
6. Step 6: Final answer
   x = 4,066,306.59