Finding the Third Proportional to 871,820 and 1,171,590

Step by Step Solution

1. Step 1: Write the proportion equation
   871,820 : 1,171,590 = 1,171,590 : x
2. Step 2: Convert to fraction form
   871,820/1,171,590 = 1,171,590/x
3. Step 3: Cross multiply
   871,820x = 1,171,590 × 1,171,590
4. Step 4: Simplify right side
   871,820x = 1,372,623,128,100
5. Step 5: Solve for x
   x = 1,372,623,128,100/871,820
6. Step 6: Final answer
   x = 1,574,434.09