Finding the Third Proportional to 28,620 and 62,616

Step by Step Solution

1. Step 1: Write the proportion equation
   28,620 : 62,616 = 62,616 : x
2. Step 2: Convert to fraction form
   28,620/62,616 = 62,616/x
3. Step 3: Cross multiply
   28,620x = 62,616 × 62,616
4. Step 4: Simplify right side
   28,620x = 3,920,763,456
5. Step 5: Solve for x
   x = 3,920,763,456/28,620
6. Step 6: Final answer
   x = 136,993.83