Finding the Third Proportional to 28,639 and 59,243

Step by Step Solution

1. Step 1: Write the proportion equation
   28,639 : 59,243 = 59,243 : x
2. Step 2: Convert to fraction form
   28,639/59,243 = 59,243/x
3. Step 3: Cross multiply
   28,639x = 59,243 × 59,243
4. Step 4: Simplify right side
   28,639x = 3,509,733,049
5. Step 5: Solve for x
   x = 3,509,733,049/28,639
6. Step 6: Final answer
   x = 122,550.82