Finding the Third Proportional to 871,858 and 1,847,432

Step by Step Solution

1. Step 1: Write the proportion equation
   871,858 : 1,847,432 = 1,847,432 : x
2. Step 2: Convert to fraction form
   871,858/1,847,432 = 1,847,432/x
3. Step 3: Cross multiply
   871,858x = 1,847,432 × 1,847,432
4. Step 4: Simplify right side
   871,858x = 3,413,004,994,624
5. Step 5: Solve for x
   x = 3,413,004,994,624/871,858
6. Step 6: Final answer
   x = 3,914,634.03