Finding the Third Proportional to 871,112 and 1,311,736

Step by Step Solution

1. Step 1: Write the proportion equation
   871,112 : 1,311,736 = 1,311,736 : x
2. Step 2: Convert to fraction form
   871,112/1,311,736 = 1,311,736/x
3. Step 3: Cross multiply
   871,112x = 1,311,736 × 1,311,736
4. Step 4: Simplify right side
   871,112x = 1,720,651,333,696
5. Step 5: Solve for x
   x = 1,720,651,333,696/871,112
6. Step 6: Final answer
   x = 1,975,235.48