Finding the Third Proportional to 871,417 and 1,320,166

Step by Step Solution

1. Step 1: Write the proportion equation
   871,417 : 1,320,166 = 1,320,166 : x
2. Step 2: Convert to fraction form
   871,417/1,320,166 = 1,320,166/x
3. Step 3: Cross multiply
   871,417x = 1,320,166 × 1,320,166
4. Step 4: Simplify right side
   871,417x = 1,742,838,267,556
5. Step 5: Solve for x
   x = 1,742,838,267,556/871,417
6. Step 6: Final answer
   x = 2,000,004.90