Finding the Third Proportional to 878,632 and 1,918,371

Step by Step Solution

1. Step 1: Write the proportion equation
   878,632 : 1,918,371 = 1,918,371 : x
2. Step 2: Convert to fraction form
   878,632/1,918,371 = 1,918,371/x
3. Step 3: Cross multiply
   878,632x = 1,918,371 × 1,918,371
4. Step 4: Simplify right side
   878,632x = 3,680,147,293,641
5. Step 5: Solve for x
   x = 3,680,147,293,641/878,632
6. Step 6: Final answer
   x = 4,188,496.77