Finding the Third Proportional to 871,380 and 1,914,588

Step by Step Solution

1. Step 1: Write the proportion equation
   871,380 : 1,914,588 = 1,914,588 : x
2. Step 2: Convert to fraction form
   871,380/1,914,588 = 1,914,588/x
3. Step 3: Cross multiply
   871,380x = 1,914,588 × 1,914,588
4. Step 4: Simplify right side
   871,380x = 3,665,647,209,744
5. Step 5: Solve for x
   x = 3,665,647,209,744/871,380
6. Step 6: Final answer
   x = 4,206,714.88