Finding the Third Proportional to 411,320 and 622,152

Step by Step Solution

1. Step 1: Write the proportion equation
   411,320 : 622,152 = 622,152 : x
2. Step 2: Convert to fraction form
   411,320/622,152 = 622,152/x
3. Step 3: Cross multiply
   411,320x = 622,152 × 622,152
4. Step 4: Simplify right side
   411,320x = 387,073,111,104
5. Step 5: Solve for x
   x = 387,073,111,104/411,320
6. Step 6: Final answer
   x = 941,051.03