Finding the Third Proportional to 123,002.75 and 260,631

Step by Step Solution

1. Step 1: Write the proportion equation
   123,002.75 : 260,631 = 260,631 : x
2. Step 2: Convert to fraction form
   123,002.75/260,631 = 260,631/x
3. Step 3: Cross multiply
   123,002.75x = 260,631 × 260,631
4. Step 4: Simplify right side
   123,002.75x = 67,928,518,161
5. Step 5: Solve for x
   x = 67,928,518,161/123,002.75
6. Step 6: Final answer
   x = 552,252.03