Finding the Third Proportional to 407,974 and 872,082

Step by Step Solution

1. Step 1: Write the proportion equation
   407,974 : 872,082 = 872,082 : x
2. Step 2: Convert to fraction form
   407,974/872,082 = 872,082/x
3. Step 3: Cross multiply
   407,974x = 872,082 × 872,082
4. Step 4: Simplify right side
   407,974x = 760,527,014,724
5. Step 5: Solve for x
   x = 760,527,014,724/407,974
6. Step 6: Final answer
   x = 1,864,155.60