Finding the Third Proportional to 401,066 and 874,120

Step by Step Solution

1. Step 1: Write the proportion equation
   401,066 : 874,120 = 874,120 : x
2. Step 2: Convert to fraction form
   401,066/874,120 = 874,120/x
3. Step 3: Cross multiply
   401,066x = 874,120 × 874,120
4. Step 4: Simplify right side
   401,066x = 764,085,774,400
5. Step 5: Solve for x
   x = 764,085,774,400/401,066
6. Step 6: Final answer
   x = 1,905,137.25