Finding the Third Proportional to 62,518 and 89,556

Step by Step Solution

1. Step 1: Write the proportion equation
   62,518 : 89,556 = 89,556 : x
2. Step 2: Convert to fraction form
   62,518/89,556 = 89,556/x
3. Step 3: Cross multiply
   62,518x = 89,556 × 89,556
4. Step 4: Simplify right side
   62,518x = 8,020,277,136
5. Step 5: Solve for x
   x = 8,020,277,136/62,518
6. Step 6: Final answer
   x = 128,287.49