Finding the Third Proportional to 878,650 and 1,918,412

Step by Step Solution

1. Step 1: Write the proportion equation
   878,650 : 1,918,412 = 1,918,412 : x
2. Step 2: Convert to fraction form
   878,650/1,918,412 = 1,918,412/x
3. Step 3: Cross multiply
   878,650x = 1,918,412 × 1,918,412
4. Step 4: Simplify right side
   878,650x = 3,680,304,601,744
5. Step 5: Solve for x
   x = 3,680,304,601,744/878,650
6. Step 6: Final answer
   x = 4,188,590.00