Finding the Third Proportional to 416,722.50 and 622,338

Step by Step Solution

1. Step 1: Write the proportion equation
   416,722.50 : 622,338 = 622,338 : x
2. Step 2: Convert to fraction form
   416,722.50/622,338 = 622,338/x
3. Step 3: Cross multiply
   416,722.50x = 622,338 × 622,338
4. Step 4: Simplify right side
   416,722.50x = 387,304,586,244
5. Step 5: Solve for x
   x = 387,304,586,244/416,722.50
6. Step 6: Final answer
   x = 929,406.47