Finding the Third Proportional to 184,620 and 401,640

Step by Step Solution

1. Step 1: Write the proportion equation
   184,620 : 401,640 = 401,640 : x
2. Step 2: Convert to fraction form
   184,620/401,640 = 401,640/x
3. Step 3: Cross multiply
   184,620x = 401,640 × 401,640
4. Step 4: Simplify right side
   184,620x = 161,314,689,600
5. Step 5: Solve for x
   x = 161,314,689,600/184,620
6. Step 6: Final answer
   x = 873,766.06