Finding the Third Proportional to 411,155.25 and 632,789

Step by Step Solution

1. Step 1: Write the proportion equation
   411,155.25 : 632,789 = 632,789 : x
2. Step 2: Convert to fraction form
   411,155.25/632,789 = 632,789/x
3. Step 3: Cross multiply
   411,155.25x = 632,789 × 632,789
4. Step 4: Simplify right side
   411,155.25x = 400,421,918,521
5. Step 5: Solve for x
   x = 400,421,918,521/411,155.25
6. Step 6: Final answer
   x = 973,894.70