Finding the Third Proportional to 290,044.50 and 622,932

Step by Step Solution

1. Step 1: Write the proportion equation
   290,044.50 : 622,932 = 622,932 : x
2. Step 2: Convert to fraction form
   290,044.50/622,932 = 622,932/x
3. Step 3: Cross multiply
   290,044.50x = 622,932 × 622,932
4. Step 4: Simplify right side
   290,044.50x = 388,044,276,624
5. Step 5: Solve for x
   x = 388,044,276,624/290,044.50
6. Step 6: Final answer
   x = 1,337,878.42