Finding the Third Proportional to 290,521.69 and 632,487.23

Step by Step Solution

1. Step 1: Write the proportion equation
   290,521.69 : 632,487.23 = 632,487.23 : x
2. Step 2: Convert to fraction form
   290,521.69/632,487.23 = 632,487.23/x
3. Step 3: Cross multiply
   290,521.69x = 632,487.23 × 632,487.23
4. Step 4: Simplify right side
   290,521.69x = 400,040,101,647.34
5. Step 5: Solve for x
   x = 400,040,101,647.34/290,521.69
6. Step 6: Final answer
   x = 1,376,971.56